Publications

Our Research
J. Magn. Magn. Mater., 515, 167257, (2020)
Thermal assisted tailoring of magnetic coercivity in Iron thin films on unstable Lithium Niobate substrate
V. Polewczyk, G. Vinai, F. Motti, S. Santhosh, S. Benedetti, G. Rossi, P. Torelli
From our users
ACS Appl. Mater. Inter., (2020)
Improved structural properties in homogeneously doped Sm0.4Ce0.6O2-δ epitaxial thin films: high doping effect on the electronic bands
N. Yang, D. Knez, G. Vinai, P. Torelli, R. Ciancio, P. Orgiani, and C. Aruta
From our users
J. Synchrotron Radiat., 27, (2020)
THORONDOR: a software for fast treatment and analysis of low‐energy XAS data
D.H. Simonne, A. Martini, M. Signorile, A. Piovano, L. Braglia, P. Torelli, E. Borfecchia, G. Ricchiardi
NFFA Thesis
University of Milan Bachelor's Degree Thesis, (2020)
E-field effect on the Fe/PMN-PT heterostructure morphology and magnetism
P. Mantegazza (Supervisors: G. Rossi, P. Torelli)
From our users
Adv. Funct. Mater., 1909964, (2020)
Self‐Formed, Conducting LaAlO3/SrTiO3 Micro‐Membranes
A. Sambri, M. Scuderi, A. Guarino, E. Di Gennaro, R. Erlandsen, R.T. Dahm, A.V. Bjørlig, D.V. Christensen, R. Di Capua, B. Della Ventura, U. Scotti di Uccio, S. Mirabella, G. Nicotra, C. Spinella, T.S. Jespersen, F. Miletto Granozio
From our users
Phys. Rev. Mater., 4, 084603, (2020)
Insight into the electronic structure of semiconducting ε−GaSe and ε−InSe
S.V. Eremeev, M. Papagno, I. Grimaldi, O. De Luca, L. Ferrari, A.K. Kundu, P.M. Sheverdyaeva, P. Moras, G. Avvisati, A. Crepaldi, H. Berger, I. Vobornik, M.G. Betti, M. Grioni, C. Carbone, E.V. Chulkov, and D. Pacilé
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
2D Mater., (2020)
Strong-coupling charge density wave in monolayer TiSe2
M.D. Watson, A. Rajan, T. Antonelli, K. Underwood, I. Marković, F. Mazzola, O.J. Clark, G.-R. Siemann, D. Biswas, A. Hunter, S. Jandura, J. Reichstetter, M. McLaren, P. Le Fèvre, G. Vinai and P.D.C. King
From our users
ACS Nano, 14, 11140-11149, (2020)
Molecular Beam Epitaxy of Two-Dimensional Vanadium-Molybdenum Diselenide Alloys
L. Zhang, T. Yang, X. He, W. Zhang, G. Vinai, C.S. Tang, X. Yin, P. Torelli, Y.P. Feng, P.K.J. Wong and A.T.S. Wee
Our Research
Nano Lett., 20, 6444–6451, (2020)
Unveiling Oxygen Vacancy Superstructures in Reduced Anatase Thin Films
D. Knez, G. Dražić, S.K. Chaluvadi, P. Orgiani, S. Fabris, G. Panaccione, G. Rossi, and R. Ciancio
Involved NFFA techniques:
PLD, SEM-STEM, XRD
Our Research
Rev. Sci. Instrum., 91, 085109, (2020)
An integrated ultra-high vacuum apparatus for growth and in situ characterization of complex materials
G. Vinai, F. Motti, A.Yu. Petrov, V. Polewczyk, V. Bonanni, R. Edla, B. Gobaut, J. Fujii, F. Suran, D. Benedetti, F. Salvador, A. Fondacaro, G. Rossi, G. Panaccione, B.A. Davidson and P. Torelli
Involved NFFA techniques:
lab-XPS, MBE, MOKE
Our Research
J. Magn. Magn. Mater, 507, 166816, (2020)
Original design of a patterned multiferroic heterostructure for electrical control of the magnetic shape anisotropy
V. Polewczyk, G. Vinai, F. Motti, S. Dal Zilio, P. Capaldo, M. Sygletou, S. Benedetti, G. Rossi, P. Torelli
Involved NFFA technique:
MBE
From our users
J. Phys. Chem. C, 124, 17783–17794, (2020)
Ga2Se3 Nanowires via Au-Assisted Heterovalent Exchange Reaction on GaAs
F. Berto, N. Haghighian, K. Ferfolja, S. Gardonio, M. Fanetti, F. Martelli, V. Mussi, V.G. Dubrovskii, I.V. Shtrom, A. Franciosi, and S. Rubini
Involved NFFA techniques:
lab-XPS, MBE, SEM-STEM
From our users
Angew. Chem. Int. Ed., (2020)
Titanium defective sites in TS‐1: structural insights by combining spectroscopy and simulation
M. Signorile, L. Braglia, V. Crocellà, P. Torelli, E. Groppo, G. Ricchiardi, S. Bordiga, F. Bonino
From our users
J. Phys. Chem. C, 124 (26), 14202-14212, (2020)
Understanding Solid-gas Reaction Mechanisms by Operando Soft X-ray Absorption Spectroscopy at Ambient Pressure
L. Braglia, M. Fracchia, P. Ghigna, A. Minguzzi, D. Meroni, R. Edla, M. Vandichel, E. Ahlberg, G. Cerrato, and P. Torelli
From our users
Appl. Surf. Sci., 514, 145925, (2020)
Catalytic activity of PtSn4: Insights from surface-science spectroscopies
G. D'Olimpio, D.W. Boukhvalov, J. Fujii, P. Torelli, A. Marchionni, J. Filippi, C.-N. Kuo, R. Edla, L. Ottaviano, C.S. Lue, F. Vizza, S. Nappini, A. Politano
From our users
Appl. Surf. Sci., 146365, (2020)
Evidence of a thermally-induced microstructural anisotropy in Gr/Co/Ir(111) systems
I. Carlomagno, A.M. Scaparro, L. Carlini, J. Drnec, G. Vinai, P. Torelli, R. Felici, S. Mobilio, C. Meneghini
From our users
Phys. Rev. B, 101, 205125, (2020)
Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe3
M.D. Watson, I. Marković, F. Mazzola, A. Rajan, E.A. Morales, D.M. Burn, T. Hesjedal, G. van der Laan, S. Mukherjee, T.K. Kim, C. Bigi, I. Vobornik, M.C. Hatnean, G. Balakrishnan and P.D.C. King
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
J. Phys. Chem. Lett., 11, 3589-3593, (2020)
Stabilization by Configurational Entropy of the Cu(II) Active Site during CO Oxidation on Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O
M. Fracchia, P. Ghigna, T. Pozzi, U. Anselmi Tamburini, V. Colombo, L. Braglia, P. Torelli
From our users
J. Phys. Soc. JPN, 89, 044711, (2020)
Electronic Structure of Yb(Ni1−xCox)3Ga9 Studied by Angle-resolved Photoelectron Spectroscopy
Y. Utsumi, D. Mondal, J. Fujii, I. Vobornik, S. Nakamura, D. Matković-Čalogović, and S. Ohara
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
Phys. Rev. Materials, 4, 025801, (2020)
Distinct behavior of localized and delocalized carriers in anatase TiO2 (001) during reaction with O2
C. Bigi, Z. Tang, G.M. Pierantozzi, P. Orgiani, P. K. Das, J. Fujii, I. Vobornik, T. Pincelli, A. Troglia, T.-L. Lee, R. Ciancio, G. Drazic, A. Verdini, A. Regoutz, P.D.C. King, D. Biswas, G. Rossi, G. Panaccione, and A. Selloni
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT
Our Research
Phys. Rev. Materials, 4, 025006, (2020)
Direct insight into the band structure of SrNbO3
C. Bigi, P. Orgiani, J. Slawinska, J. Fujii, J.T. Irvine, S. Picozzi, G. Panaccione, I. Vobornik, G. Rossi, D. Payne, and F. Borgatti
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT, PLD
Our Research
Struct. Dyn., 7, 014303, (2020)
Coherent narrowband light source for ultrafast photoelectron spectroscopy in the 17–31 eV photon energy range
R. Cucini, T. Pincelli, G. Panaccione, D. Kopic, F. Frassetto, P. Miotti, G.M. Pierantozzi, S. Peli, A. Fondacaro, A. De Luisa, A. De Vita, P. Carrara, D. Krizmancic, D.T. Payne, F. Salvador, A. Sterzi, L. Poletto, F. Parmigiani, G. Rossi, and F. Cilento
Our Research
Phys. Rev. B, 101, 035404, (2020)
Proximity-induced ferromagnetism and chemical reactivity in few-layer VSe2 heterostructures
G. Vinai, C. Bigi, A. Rajan, M. D. Watson, T.-L. Lee, F. Mazzola, S. Modesti, S. Barua, M. Ciomaga Hatnean, G. Balakrishnan, P.D.C. King, P. Torelli, G. Rossi, and G. Panaccione
From our users
Nucl. Instrum. Methods Phys. Res. B, 462, 130-138, (2020)
Ion beam induced transient amorphous nucleation in silicon
C. Spinella, S.M.S. Privitera, A.M. Mio, E. Rimini
NFFA Thesis
University of Milan Master's Degree Thesis, (2020)
Characterization of a High Harmonics Generation source for spectroscopic pump-probe experiments and first results on Fe(100)/MgO surface
P. Carrara (Supervisors: G. Rossi, G. Panaccione, R. Cucini)
From our users
J. Elec. Spectr. Rel. Phenom., 146902, (2019)
Operando photoelectron emission spectroscopy and microscopy at Elettra soft X-ray beamlines: From model to real functional systems
M. Amati, V. Bonanni, L. Braglia, F. Genuzio, L. Gregoratti, M. Kiskinova, A. Kolmakov, A. Locatelli, E. Magnano, A.A. Matruglio, T.O. Menteş, S. Nappini, P. Torelli, P. Zeller
From our users
Nat. Commun., 10, 5485, (2019)
Weyl-like points from band inversions of spin-polarised surface states in NbGeSb
I. Marković, C.A. Hooley, O.J. Clark, F. Mazzola, M.D. Watson, J.M. Riley, K. Volckaert, K. Underwood, M.S. Dyer, P.A.E. Murgatroyd, K.J. Murphy, P. Le Fèvre, F. Bertran, J. Fujii, I. Vobornik, S. Wu, T. Okuda, J. Alaria and P.D.C. King
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Phys. Rev. B, 100, 174423, (2019)
Detecting antiferromagnetism in tetragonal Cr2O3 by electrical measurements
M. Asa, C. Autieri, C. Barone, C. Mauro, S. Picozzi, S. Pagano, and M. Cantoni
Involved NFFA technique:
DFT
From our users
Phys. Rev. B, 100, 195134, (2019)
Observation of bulk states and spin-polarized topological surface states in transitionmetal dichalcogenide Dirac semimetal candidate NiTe2
B. Ghosh, D. Mondal, C.-N. Kuo, C.S. Lue, J. Nayak, J. Fujii, I. Vobornik, A. Politano, and A. Agarwal
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Adv. Func. Mater., 30, 1906556, (2019)
PdTe2 Transition-Metal Dichalcogenide: Chemical Reactivity, Thermal Stability, and Device Implementation
G. D'Olimpio, C. Guo, C.N. Kuo, R. Edla, C.S. Lue, L. Ottaviano, P. Torelli, L. Wang, D.W. Boukhvalov, A. Politano
From our users
J. Vac. Sci. Technol. B, 37, 061209, (2019)
Transparent conductive oxide-based architectures for the electrical modulation of the optical response: A spectroscopic ellipsometry study
M. Sygletou, F. Bisio, S. Benedetti, P. Torelli, A. di Bona, A. Petrov, and M. Canepa
Involved NFFA technique:
MBE
From our users
Phys. Rev. B, 100, 121104, (2019)
Surface states and Rashba-type spin polarization in antiferromagnetic MnBi2Te4(0001)
R.C. Vidal, H. Bentmann, T.R.F. Peixoto, A. Zeugner, S. Moser, C.-H. Min, S. Schatz, K. Kißner, M. Ünzelmann, C.I. Fornari, H.B. Vasili, M. Valvidares, K. Sakamoto, D. Mondal, J. Fujii, I. Vobornik, S. Jung, C. Cacho, T.K. Kim, R.J. Koch, C. Jozwiak, A. Bostwick, J.D. Denlinger, E. Rotenberg, J. Buck, M. Hoesch, F. Diekmann, S. Rohlf, M. Kalläne, K. Rossnagel, M.M. Otrokov, E.V. Chulkov, M. Ruck, A. Isaeva, and F. Reinert
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
J. Phys. Chem. C., 123, 24511-24519, (2019)
Study of Gaseous Interactions on Co3O4 Thin Film Coatings by Ambient Pressure Soft X-ray Absorption Spectroscopy
R. Edla, L. Braglia, V. Bonanni, A. Miotello, G. Rossi, P. Torelli
From our users
Phys. Rev. B, 100, 115109, (2019)
Electronic correlation determining correlated plasmons in Sb-doped Bi2Se3
P.K. Das, T.J. Whitcher, M. Yang, X. Chi, Y.P. Feng, W. Lin, J.S. Chen, I. Vobornik, J. Fujii, K.A. Kokh, O.E. Tereshchenko, C.Z. Diao, J. Moon, S. Oh, A.H. Castro-Neto, M.B.H. Breese, A.T.S. Wee, and A. Rusydi
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
ACS Nano, 13, 8997-9004, (2019)
Magnetic Transition in Monolayer VSe2 via Interface Hybridization
W. Zhang, L. Zhang, P.K.J. Wong, J. Yuan, G. Vinai, P. Torelli, G. van der Laan, Y.P. Feng, A.T.S. Wee
Our Research
Phys. Rev. B, 100, 045118, (2019)
Transient quantum isolation and critical behavior in the magnetization dynamics of half-metallic manganites
T. Pincelli, R. Cucini, A. Verna, F. Borgatti, M. Oura, K. Tamasaku, H. Osawa, T.-L. Lee, C. Schlueter, S. Günther, C.H. Back, M. Dell’Angela, R. Ciprian, P. Orgiani, A. Petrov, F. Sirotti, V.A. Dediu, I. Bergenti, P. Graziosi, F. Miletto Granozio, Y. Tanaka, M. Taguchi, H. Daimon, J. Fujii, G. Rossi, and G. Panaccione
Involved NFFA technique:
MBE
Our Research
Phys. Status solidi RRL, 1900332, (2019)
Interaction of VSe2 with Ambient Gases: Stability and Chemical Reactivity
R. Edla, C.N. Kuo, P. Torelli, C.S. Lue, D.W. Boukhvalov, Antonio Politano
From our users
J. Phys. Chem. C, 123, 17521-17529, (2019)
Formation of a Metallic Ferromagnetic Thin Film on Top of an FePc-Ordered Thin Film: The Chemical and Magnetic Properties of the Interface
E. Annese, G. Di Santo, F. Choueikani, E. Otero and P. Ohresser
From our users
Sci. Rep., 9, 9645, (2019)
The actual electronic band structure of a rubrene single crystal
J. Nitta, K. Miwa, N. Komiya, E. Annese, J. Fujii, S. Ono and K. Sakamoto
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Eur. Phys. J Spec. Top., 228, 733–739, (2019)
Study of the surface properties of NCCO electron-doped cuprate
A. Guarino, P. Romano, J. Fujii, A. Ruosi, F. Avitabile, I. Vobornik, G. Panaccione, A. Vecchione and A. Nigro
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
Phys. Rev. B, 99, 214427, (2019)
Possible emergence of a skyrmion phase in ferroelectric GaMo4S8
H. Zhang, J. Chen, P. Barone, K. Yamauchi, S. Dong, and S. Picozzi
Involved NFFA technique:
DFT
From our users
Adv. Mater., 23, 1901185, (2019)
Evidence of Spin Frustration in a Vanadium Diselenide Monolayer Magnet
P.K.J. Wong, W. Zhang, F. Bussolotti, X. Yin, T.S. Herng, L. Zhang, Y.L. Huang, G. Vinai, S. Krishnamurthi, D.W. Bukhvalov, Y.J. Zheng, R. Chua, A.T. N'Diaye, S.A. Morton, C.‐Y. Yang, K.‐H.O. Yang, P. Torelli, W. Chen, K. Eng, J. Goh, J. Ding. M.‐T. Lin, G. Brocks, M.P. de Jong, A.H. Castro Neto, A.T.S. Wee
Our Research
Appl. Surf. Sci., 473, 190-193, (2019)
Robustness of topological states in Bi2Se3 thin film grown by Pulsed Laser Deposition on (0 0 1)-oriented SrTiO3 perovskite
C. Bigi, P. Orgiani, A. Nardi, A. Troglia, J. Fujii, G. Panaccione, I. Vobornik, G. Rossi
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, PLD, STM/STS
Our Research
Adv. Electron. Mater., 7, 1900150, (2019)
Reversible Modification of Ferromagnetism through Electrically Controlled Morphology
G. Vinai, F. Motti, V. Bonanni, A. Petrov, S. Benedetti, C. Rinaldi, M. Stella, D. Cassese, S. Prato, M. Cantoni, G. Rossi, G. Panaccione, P. Torelli
From our users
Thin Solid Films, 674, 12-21, (2019)
Control of composition and grain growth in Cu2ZnSnS4 thin films from nanoparticle inks
N. Ataollahi, C. Malerba, E. Cappelletto, R. Ciancio, R. Edla, R. Di Maggio, P. Scardi
Our Research
Electron. Struct., 1, 014003, (2019)
Electronic properties of candidate type-II Weyl semimetal WTe2. A review perspective
P.K. Das, D. Di Sante, F. Cilento, C. Bigi, D. Kopic, D. Soranzio, A. Sterzi, J.A. Krieger, I. Vobornik, J. Fujii, T. Okuda, V.N. Strocov, M.B.H. Breese, F. Parmigiani, G. Rossi, S. Picozzi, R. Thomale, G. Sangiovanni, R.J. Cava, and G. Panaccione
From our users
Electron. Struct., 1, 014002, (2019)
A general route to form topologically-protected surface and bulk Dirac fermions along high-symmetry lines
O.J. Clark, F. Mazzola, I. Marković, J.M. Riley, J. Feng, B.-J. Yang, K. Sumida, T. Okuda, J. Fujii, I. Vobornik, T.K. Kim, K. Okawa, T. Sasagawa, M.S. Bahramy and P.D.C. King
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
ACS Omega, 4, 5076-5082, (2019)
Iron Phthalocyanine and Ferromagnetic Thin Films: MagneticBehavior of Single and Double Interfaces
E. Annese, G. Di Santo, F. Choueikani, E. Otero, P. Ohresser
From our users
Adv. Funct. Mater., 29, 1900438, (2019)
Surface Instability and Chemical Reactivity of ZrSiS and ZrSiSe Nodal‐Line Semimetals
D.W. Boukhvalov, R. Edla, A. Cupolillo, V. Fabio, R. Sankar, Y. Zhu, Z. Mao, J. Hu, P. Torelli, G. Chiarello, L. Ottaviano, A. Politano
Our Research
Phys. Rev. B, 99, 075306, (2019)
Fe/GeTe(111) heterostructures as an avenue towards spintronics based on ferroelectric Rashba semiconductors
J. Sławińska, D. Di Sante, S. Varotto, C. Rinaldi, R. Bertacco, and S. Picozzi
NFFA Thesis
University of Milan PhD Thesis, (2019)
Understanding the electronic properties of quantum materials by means of photoemission with angular and spin resolution
C. Bigi (Supervisors: G. Rossi, I. Vobornik)
NFFA Thesis
University of Milan Master's Degree Thesis, (2019)
Layer-by-layer growth of TiO2 - anatase: evolution 2D/3D of the electron states
A. Troglia (Supervisors: G. Rossi, P. Orgiani, I. Vobornik)
Involved NFFA technique:
PLD
NFFA Thesis
University of Milan PhD Thesis, (2019)
Strain-mediated magneto electric coupling and beyond: case studies by in-operando spectroscopy
F. Motti (Supervisor: G. Rossi)
NFFA Thesis
Summer Internship Report, (2019)
Moke investigations - Summer internship report
S. Santosh (Supervisor: P. Torelli)
Involved NFFA techniques:
MBE, MOKE
NFFA Thesis
University of Milan Bachelor's Degree Thesis, (2019)
All-resolved photoemission spectroscopy of Fe(100) and passivated Fe-p(1x1)O surfaces
A.M. Finardi (Supervisors: G. Rossi, I. Vobornik, J. Fujii)
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, MOKE
Our Research
Microscopie, 29, 61-67, (2018)
A combined in operando approach for low-energy Scanning Transmission Electron Microscopy and Grazing Incident Small Angle X-ray Scattering
S. Dal Zilio, M. Salleras, L. Balcells, J. Esteve, R. Edla, A. Young, C.-K. Tsung, P. Scardi, R. Rashidi, G. Cautero, B. Marmiroli, H. Amenitsch, R. Ciancio
Involved NFFA technique:
SEM-STEM
From our users
Phys. Status Solidi-RRL, 12, 1800341, (2018)
Deep Insight Into the Electronic Structure of Ternary Topological Insulators: A Comparative Study of PbBi4Te7 and PbBi6Te10
D. Pacilè, S.V. Eremeev, M. Caputo, M. Pisarra, O. De Luca, I. Grimaldi, J. Fujii, Z.S. Aliev, M.B. Babanly, I. Vobornik, R.G. Agostino, A. Goldoni, E.V. Chulkov, M. Papagno
From our users
Phys. Rev. Materials, 2, 104201, (2018)
Enhanced surface state protection and band gap in the topological insulator PbBi4Te4S3
K. Sumida, T. Natsumeda, K. Miyamoto, I.V. Silkin, K. Kuroda, K. Shirai, S. Zhu, K. Taguchi, M. Arita, J. Fujii, A. Varykhalov, O. Rader, V.A. Golyashov, K.A. Kokh, O.E. Tereshchenko, E.V. Chulkov, T. Okuda, and A. Kimura
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Sci. Data, 5, 180172, (2018)
The first annotated set of scanning electron microscopy images for nanoscience
R. Aversa, M.H. Modarres, S. Cozzini, R. Ciancio and A. Chiusole
Involved NFFA technique:
SEM-STEM
From our users
Phys. Rev. Lett., 121, 076401, (2018)
Influence of Spin-Orbit Coupling in Iron-Based Superconductors
R.P. Day, G. Levy, M. Michiardi, B. Zwartsenberg, M. Zonno, F. Ji, E. Razzoli, F. Boschini, S. Chi, R. Liang, P.K. Das, I. Vobornik, J. Fujii, W.N. Hardy, D.A. Bonn, I.S. Elfimov, and A. Damascelli
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT
Our Research
Appl. Phys. Lett., 113, 052403, (2018)
Room temperature biaxial magnetic anisotropy in La0.67Sr0.33MnO3 thin films on SrTiO3 buffered MgO (001) substrates for spintronic applications
S.K. Chaluvadi, F. Ajejas, P. Orgiani, O. Rousseau, G. Vinai, A. Petrov, P. Torelli, A. Pautrat, J. Camarero, P. Perna, and L. Mechin
Involved NFFA techniques:
MOKE, PLD, XRD
Our Research
Phys. Rev. Materials, 2(6), 065001, (2018)
Role of Spin-Orbit Coupling in the Electronic Structure of IrO2
P. K. Das, J. Sławińska, I. Vobornik, J. Fujii, A. Regoutz, J.M. Kahk, D.O. Scanlon, B.J. Morgan, C. McGuinness, E. Plekhanov, D. Di Sante, Y.-S. Huang, R.-S. Chen, G. Rossi, S. Picozzi, W.R. Branford, G. Panaccione, and D.J. Payne
Our Research
Rev. Sci. Instrum., 89, 054101, (2018)
A reaction cell for ambient pressure soft x-ray absorption spectroscopy
C. Castán-Guerrero, D. Krizmancic, V. Bonanni, R. Edla, A. Deluisa, F. Salvador, G. Rossi, G. Panaccione, and P. Torelli
From our users
Phys. Status Solidi An., 215, 1800015, (2018)
Bonding Character and Magnetism at the Interface Between Fe and MoS2 Nanosheets
R. Mantovan, Y. Matveyev, G. Vinai, C. Martella, P. Torelli, A. Molle, S. Zarubin, Y. Lebedinskii, A. Zenkevich
From our users
2D Mater., 5, 035012, (2018)
Epitaxial growth of single-orientation high-quality MoS2 monolayers
H. Bana, E. Travaglia, L. Bignardi, P. Lacovig, C.E. Sanders, M. Dendzik, M. Michiardi, M. Bianchi, D. Lizzit, F. Presel, D. De Angelis, N. Apostol, P.K. Das, J. Fujii, I. Vobornik, R. Larciprete, A. Baraldi, P. Hofmann and S. Lizzit
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
J. Phys. Chem. Lett., 9, 10, 2510, (2018)
Switching from Reactant to Substrate Engineering in the Selective Synthesis of Graphene Nanoribbons
N. Merino-Díez, J. Lobo-Checa, P. Nita, A. Garcia-Lekue, A. Basagni, G. Vasseur, F. Tiso, F. Sedona, P.K. Das, J. Fujii, I. Vobornik, M. Sambi, J.I. Pascual, J.E. Ortega, D.G. de Oteyza
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Phys. Rev. Lett., 120, 156403, (2018)
Band Structure of the IV-VI Black Phosphorus Analog and Thermoelectric SnSe
I. Pletikosić, F. von Rohr, P. Pervan, P.K. Das, I. Vobornik, R.J. Cava, and T. Valla
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Phys. Rev. Lett., 120, 156401, (2018)
Fermiology and Superconductivity of Topological Surface States in PdTe2
O.J. Clark, M.J. Neat, K. Okawa, L. Bawden, I. Marković, F. Mazzola, J. Feng, V. Sunko, J. M. Riley, W. Meevasana, J. Fujii, I. Vobornik, T.K. Kim, M. Hoesch, T. Sasagawa, P. Wahl, M.S. Bahramy, and P.D.C. King
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
OSA Technical Digest, paper EW2B.5, (2018)
A Novel High Order Harmonic Source for Time- and Angle-Resolved Photoemission Experiments
P. Miotti, F. Cilento, R. Cucini, A. De Luisa, A. Fondacaro, F. Frassetto, D. Kopić, D. Payne, A. Sterzi, T. Pincelli, G. Panaccione, F. Parmigiani, G. Rossi, and L. Poletto
Our Research
Phys. Rev. B, 97, 094423, (2018)
Strain-induced magnetization control in an oxide multiferroic heterostructure
F. Motti, G. Vinai, A. Petrov, Bruce A. Davidson, B. Gobaut, A. Filippetti, G. Rossi, G. Panaccione, and P. Torelli
From our users
J. Appl. Phys., 123, 123901, (2018)
X-ray absorption spectroscopy study of annealing process on Sr1–xLaxCuO2 electron-doped cuprate thin films
A. Galdi, P. Orgiani, C. Sacco, B. Gobaut, P. Torelli, C. Aruta, N.B. Brookes, M. Minola, J.W. Harter, K.M. Shen, D.G. Schlom, and L. Maritato
From our users
Phys. Rev. Materials, 2, 033401, (2018)
Interdiffusion-driven synthesis of tetragonal chromium (III) oxide on BaTiO3
M. Asa, G. Vinai, J.L. Hart, C. Autieri, C. Rinaldi, P. Torelli, G. Panaccione, M.L. Taheri, S. Picozzi, and M. Cantoni
From our users
Langmuir, 34, 3604-3609, (2018)
Opposite Surface and Bulk Solvatochromic Effects in a Molecular Spin-C
F. Borgatti, P. Torelli, M. Brucale, D. Gentili, G. Panaccione, C. Castan-Guerrero, B. Schäfer, M. Ruben and M. Cavallini
From our users
Adv. Funct. Mater., 28, 1706504, (2018)
Tailoring the Surface Chemical Reactivity of Transition-Metal Dichalcogenide PtTe2 Crystals
A. Politano, G. Chiarello, C. Kuo, C.S. Lue, R. Edla, P. Torelli, V. Pellegrini, D.W. Boukhvalov
From our users
Small, 14, 1704321, (2018)
Functionalized Graphdiyne Nanowires: On‐Surface Synthesis and Assessment of Band Structure, Flexibility, and Information Storage Potential
F. Klappenberger, R. Hellwig, P. Du, T. Paintner, M. Uphoff, L. Zhang T. Lin, B.A. Moghanaki, M. Paszkiewicz, I. Vobornik, J. Fujii, O. Fuhr, Y.‐Q. Zhang, F. Allegretti, M. Ruben, J.V. Barth
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
J. Appl. Phys., 123, 123901, (2018)
Ferroelectric Control of the Spin Texture in GeTe
C. Rinaldi , S. Varotto, M. Asa, J. Sławińska, J. Fujii, G. Vinai, S. Cecchi, D. Di Sante, R. Calarco, I. Vobornik, G. Panaccione, S. Picozzi, R. Bertacco
Our Research
Appl. Phys. Lett., 112, 022404, (2018)
X-ray magnetic circular dichroism discloses surface spins correlation in maghemite hollow nanoparticles
V. Bonanni, M. Basini, D. Peddis, A. Lascialfari, G. Rossi, and P. Torelli
NFFA Thesis
University of Salerno PhD Thesis, (2018)
Growth and characterization of epitaxial oxide - based electron and hole - doped thin films and their heterostructures
C. Sacco (Supervisor: L. Maritato)
NFFA Thesis
University of Milan Master's Degree Thesis, (2018)
Spin-polarization measurement of the quantum yield from solid surfaces as excited by high harmonics of 100 fs-scale laser sources
A. De Vita (Supervisors: G. Rossi, G. Panaccione)
Our Research
Nanoscale, 10, 1326-1336, (2017)
Giant magneto-electric coupling in 100 nm thick Co capped by ZnO nanorods
G. Vinai, B. Ressel, P. Torelli, F. Loi, B. Gobaut, R. Ciancio, B. Casarin, A. Caretta, L. Capasso, F. Parmigiani, F. Cugini, M. Solzi, M. Malvestuto and R. Ciprian
Involved NFFA techniques:
MOKE, SEM-STEM
From our users
Phys. Rev. B, 96, 241408, (2017)
Enhanced ultrafast relaxation rate in the Weyl semimetal phase of MoTe2 measured by time-and angle-resolved photoelectron spectroscopy
A. Crepaldi, G. Autès, G. Gatti, S. Roth, A. Sterzi, G. Manzoni, M. Zacchigna, C. Cacho, R.T. Chapman, E. Springate, E.A. Seddon, P. Bugnon, A. Magrez, H. Berger, I. Vobornik, M. Kalläne, A. Quer, K. Rossnagel, F. Parmigiani, O.V. Yazyev and M. Grioni
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Nature Materials, 17, 21-28, (2017)
Ubiquitous formation of bulk Dirac cones and topological surface states from a single orbital manifold in transition-metal dichalcogenides
M.S. Bahramy, O.J. Clark, B.-J. Yang, J. Feng, L. Bawden, J.M. Riley, I. Marković, F. Mazzola, V. Sunko, D. Biswas, S.P. Cooil, M. Jorge, J.W. Wells, M. Leandersson, T. Balasubramanian, J. Fujii, I. Vobornik, J.E. Rault, T. K. Kim, M. Hoesch, K. Okawa, M. Asakawa, T. Sasagawa, T. Eknapakul, W. Meevasana and P.D.C. King
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Nano Lett., 17 (12), 7440, (2017)
Enhanced Magnetic Hybridization of a Spinterface through Insertion of a Two-Dimensional Magnetic Oxide Layer
A. Brambilla, A. Picone, D. Giannotti, A. Calloni, G. Berti, G. Bussetti, S. Achilli, G. Fratesi, M.I. Trioni, G. Vinai, P. Torelli, G. Panaccione, L. Duò, M. Finazzi, F. Ciccacci
From our users
Phys. Rev. B, 96, 165149, (2017)
Temperature-independent band structure of WTe2 as observed from angle-resolved photoemission spectroscopy
S. Thirupathaiah, R. Jha, B. Pal, J.S. Matias, P. Kumar Das, I. Vobornik, R.A. Ribeiro and D.D. Sarma
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
Scientific Reports, 7, 13282, (2017)
Neural Network for Nanoscience Scanning Electron Microscope Image Recognition
M. Hadi Modarres, R. Aversa, S. Cozzini, R. Ciancio, A. Leto and G.P. Brandino
Involved NFFA technique:
SEM-STEM
From our users
Phys. Chem., 19, 29364, (2017)
Spectroscopic identification of the chemical interplay between defects and dopants in Al-doped ZnO
S. Benedetti, I. Valenti, A. di Bona, G. Vinai, C. Castan-Guerrero, S. Valeri, A. Catellani, A. Ruini, P. Torelli and A. Calzolari
Our Research
J. Phys.: Conf. Ser., 903, 012061, (2017)
Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers
G. Vinai, L. Frangou, C. Castan-Guerrero, V. Bonanni, B. Gobaut, S. Auffret, I.L. Prejbeanu, B. Dieny, V. Baltz and P. Torelli
From our users
Chemical Physics Letters, 683. 135, (2017)
Time resolved resonant photoemission study of energy level alignment at donor/acceptor interfaces
R. Costantini, T. Pincelli, A. Cossaro, A. Verdini, A. Goldoni, S. Cichoň, M. Caputo, M.Pedio, G. Panaccione, M.G. Silly, F. Sirotti, A. Morgante, M. Dell'Angela
From our users
Catal. Sci. Technol., 7, 4162, (2017)
The effect of surface chemistry on the performances of Pd-based catalysts supported on activated carbons
A. Lazzarini, R. Pellegrini, A. Piovano, S. Rudić, C. Castan-Guerrero, P. Torelli, M.R. Chierotti, R. Gobetto, C. Lamberti and E. Groppo
Our Research
Nature Communications, 8, 16051, (2017)
Quantifying the critical thickness of electron hybridization in spintronics materials
T. Pincelli, V. Lollobrigida, F. Borgatti, A. Regoutz, B. Gobaut, C. Schlueter, T.-L. Lee, D.J. Payne, M. Oura, K. Tamasaku, A.Y. Petrov, P. Graziosi, F. Miletto Granozio, M. Cavallini, G. Vinai, R. Ciprian, C.H. Back, G. Rossi, M. Taguchi, H. Daimon, G. van der Laan and G. Panaccione
Our Research
Phys. Rev. Lett., 119, 026403, (2017)
Three-Dimensional Electronic Structure of the Type-II Weyl Semimetal WTe 2
D. Di Sante, P. Kumar Das, C. Bigi, Z. Ergönenc, N. Gürtler, J. A. Krieger, T. Schmitt, M.N. Ali, G. Rossi, R. Thomale, C. Franchini, S. Picozzi, J. Fujii, V.N. Strocov, G. Sangiovanni, I. Vobornik, R.J. Cava, and G. Panaccione
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT
Our Research
J. Synchrotron Rad., 24, 750–756, (2017)
Very efficient spin polarization analysis (VESPA): new exchange scattering-based setup for spin- resolved ARPES at APE-NFFA beamline at Elettra
C. Bigi, P. K. Das, D. Benedetti, F. Salvador, D. Krizmancic, R. Sergo, A. Martin, G. Panaccione, G. Rossi, J. Fujii and I. Vobornik
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
ACS Appl. Mater. Interfaces, 9, 23099, (2017)
Role of Oxygen Deposition Pressure in the Formation of Ti Defect States in TiO2(001) Anatase Thin Films
B. Gobaut , P. Orgiani, A. Sambriet, E. di Gennaro, C. Aruta, F. Borgatti, V. Lollobrigida, D. Céolin, J.-P. Rueff, R. Ciancio, C. Bigi, P.K. Das, J. Fujii, D. Krizmancic, P. Torelli, I. Vobornik, G. Rossi, F. Miletto Granozio, U. Scotti di Uccio, G. Panaccione
From our users
Phys. Rev. B, 95, 241105(R), (2017)
MoTe2: An uncompensated semimetal with extremely large magnetoresistance
S. Thirupathaiah, R. Jha, B. Pal, J.S. Matias, P.K. Das, P.K. Sivakumar, I. Vobornik, N.C. Plumb, M. Shi, R.A. Ribeiro and D.D. Sarma
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
Our Research
Appl. Phys. Lett., 110, 171601, (2017)
Structural and electronic properties of Bi2Se3 topological insulator thin films grown by pulsed laser deposition
P. Orgiani, C. Bigi, P. Kumar Das, J. Fujii, R. Ciancio, B. Gobaut, A. Galdi, C. Sacco, L. Maritato, P. Torelli, G. Panaccione, I. Vobornik, and G. Rossi
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, PLD
From our users
J. Phys. Chem. C, 121, 8841–8849, (2017)
Effects of Dopant Ionic Radius on Cerium Reduction in Epitaxial Cerium Oxide Thin Films
N. Yang, P. Orgiani, E. Di Bartolomeo, V. Foglietti, P. Torelli, A.V. Ievlev, G. Rossi, S. Licoccia, G. Balestrino, S.V. Kalinin, C. Aruta
From our users
Phys. Rev. B, 95, 041408(R), (2017)
Persistence of a surface state arc in the topologically trivial phase of MoTe2
A. Crepaldi, G. Autès, A. Sterzi, G. Manzoni, M. Zacchigna, F. Cilento, I. Vobornik, J. Fujii, P. Bugnon, A. Magrez, H. Berger, F. Parmigiani, O.V. Yazyev and M. Grioni
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
From our users
Nature Communication Vol., 8, 13973, (2017)
Signature of type-II Weyl semimetal phase in MoTe2
J. Jiang, Z.K. Liu, Y. Sun, H.F. Yang, C.R. Rajamathi, Y.P. Qi, L.X. Yang, C. Chen, H. Peng, C.-C. Hwang, S.Z. Sun, S.-K. Mo, I. Vobornik, J. Fujii, S.S.P. Parkin, C. Felser, B.H. Yan and Y.L. Chen
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
NFFA Thesis
University of Milan PhD Thesis, (2017)
Probing electron correlation dynamics: a multi-technique study applied to the half-metallic oxide La3-xSrxMnO5
T. Pincelli (Supervisor: G. Rossi)
Our Research
J. Synchrotron Rad., 24, 175-187, (2017)
Performance of photoelectron spin polarimeters with continuous and pulsed sources: from storage rings to free electron lasers
T. Pincelli, F. Grasselli, V.N. Petrov, P. Torelli and G. Rossi
Our Research
Phys. Rev. B, 94, 241114, (2016)
Hidden spin polarization in nonmagnetic centrosymmetric BaNiS2 crystal: Signatures from first principles
J. Sławinska, A. Narayan and S. Picozzi
Involved NFFA technique:
DFT
From our users
Phys. Rev. B, 94, 235140, (2016)
Bulk and surface electronic structure of hexagonal structured PtBi2 studied by angle-resolved photoemission spectroscopy
Q. Yao, Y.P. Du, X.J. Yang, Y. Zheng, D.F. Xu, X.H. Niu, X.P. Shen, H.F. Yang, P. Dudin, T.K. Kim, M. Hoesch, I. Vobornik, Z.-A. Xu, X.G. Wan, D.L. Feng and D.W. Shen
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT
From our users
Phys. Rev. Lett., 117, 237601, (2016)
Evidence for a Strong Topological Insulator Phase in ZrTe5
G. Manzoni, L. Gragnaniello, G. Autès, T. Kuhn, A. Sterzi, F. Cilento, M. Zacchigna, V. Enenkel, I. Vobornik, L. Barba, F. Bisti, P. Bugnon, A. Magrez, V.N. Strocov, H. Berger, O.V. Yazyev, M. Fonin, F. Parmigiani and A. Crepaldi
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, STM/STS
From our users
Phys. Rev. B, 94, 075141, (2016)
Electronic structure of the chiral helimagnet and 3d-intercalated transition metal dichalcogenide Cr1/3NbS2
N. Sirica, S.-K. Mo, F. Bondino, I. Pis, S. Nappini, P. Vilmercati, J. Yi, Z. Gai, P.C. Snijders, P.K. Das, I. Vobornik, N. Ghimire, M.R. Koehler, L. Li, D. Sapkota, D.S. Parker, D.G. Mandrus and N. Mannella
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, DFT
From our users
ACS Appl. Mater. Interfaces, 8, 14613−14621, (2016)
Role of Associated Defects in Oxygen Ion Conduction and Surface Exchange Reaction for Epitaxial Samaria-Doped Ceria Thin Films as Catalytic Coatings
N. Yang, Y. Shi, S. Schweiger, E. Strelcov, A. Belianinov, V. Foglietti, P. Orgiani, G. Balestrino, S.V. Kalinin, J.L.M. Rupp, C. Aruta
From our users
Nano Lett., 16, 3409, (2016)
Manipulating the Topological Interface by Molecular Adsorbates: Adsorption of Co-Phthalocyanine on Bi2Se3
M. Caputo, M. Panighel, S. Lisi, L. Khalil, G. Di Santo, E. Papalazarou, A. Hruban, M. Konczykowski, L. Krusin-Elbaum, Z.S. Aliev, M.B. Babanly, M.M. Otrokov, A. Politano, E.V. Chulkov, Andrés Arnau, V. Marinova, P.K. Das, J. Fujii, I. Vobornik, L. Perfetti, A. Mugarza, A. Goldoni, M. Marsi
Involved NFFA techniques:
ARPES and spin ARPES @ APE-LE, STM/STS
Our Research
Rev. Sci Instrum., 87, 035111, (2016)
Design and optimization of a modular setup for measurements of three-dimensional spin polarization with ultrafast pulsed sources
T. Pincelli, V.N. Petrov, G. Brajnik, R. Ciprian, V. Lollobrigida, P. Torelli, D. Krizmancic, F. Salvador, A. De Luisa, R. Sergo, A. Gubertini, G. Cautero, S. Carrato, G. Rossi, and G. Panaccione
Our Research
Nat. Commun., 7, 10847, (2016)
Layer-dependent quantum cooperation of electron and hole states in the anomalous semimetal WTe2
P. K. Das, D. Di Sante, I. Vobornik, J. Fujii, T. Okuda, E. Bruyer, A. Gyenis, B.E. Feldman, J. Tao, R. Ciancio, G. Rossi, M.N. Ali, S. Picozzi, A. Yadzani, G. Panaccione and R.J. Cava
Involved NFFA technique:
ARPES and spin ARPES @ APE-LE
NFFA Thesis
Roma Tre University PhD Thesis, (2016)
Strongly correlated electron materials: A core level photoelectron spectroscopy investigation
V. Lollobrigida (Supervisor: F. Offi)
Involved NFFA technique:
MBE
From our users
Adv. Funct. Mat., 26, 507, (2015)
Role and Optimization of the Active Oxide Layer in TiO2-Based RRAM
A. Regoutz, I. Gupta, A. Serb, A. Khiat, F. Borgatti, T.‐L. Lee, C. Schlueter, P. Torelli, B. Gobaut, M. Light, D. Carta, S. Pearce, G. Panaccione, T. Prodromakis
Our Research
AIP Advances, 5, 127128, (2015)
Magnetoresistance of galfenol-based magnetic tunnel junction
B. Gobaut, G. Vinai, C. Castan-Guerrero, D. Krizmancic, H. Rafaqat, S. Roddaro, G. Rossi, G. Panaccione, M. Eddrief, M. Marangolo, and P. Torelli
Involved NFFA techniques:
MBE, MOKE
From our users
Dalton Trans., 45, 134-143, (2015)
Surface induces different crystal structures in a room temperature switchable spin crossover compound
D. Gentili, F. Liscio, N. Demitri, B. Schäfer, F. Borgatti, P. Torelli, B. Gobaut, G. Panaccione, G. Rossi, A. Degli Esposti, M. Gazzano, S. Milita, I. Bergenti, G. Ruani, I. Šalitroš, M. Rubendi and M. Cavallini
Our Research
APL Mater., 3, 116107, (2015)
Unraveling the magnetic properties of BiFe0.5Cr0.5O3 thin films
G. Vinai, A. Khare, D. S. Rana, E. Di Gennaro, B. Gobaut, R. Moroni, A. Petrov, U. Scotti di Uccio, G. Rossi, F. Miletto Granozio, G. Panaccione, and P. Torelli
From our users
Angew. Chem. Int. Ed., 54, 12976, (2015)
Reversible Photoswitching of a Spin-Crossover Molecular Complex in the Solid State at Room Temperature
B. Rösner, M. Milek, A. Witt, B. Gobaut, P. Torelli, R.H. Fink, M.M. Khusniyarov
Our Research
J. Magn. Magn. Mat., 383, 56, (2015)
FeGa/MgO/Fe/GaAs(001) magnetic tunnel junction: Growth and magnetic properties
B. Gobaut, R. Ciprian, B.R. Salles, D. Krizmancic, G. Rossi, G. Panaccione, M. Eddrief, M. Marangolo, P. Torelli
From our users
Adv. Electron. Mater., 1, 1400039, (2015)
Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO
R. Mantovan, H.P. Gunnlaugsson, K. Johnston, H. Masenda, T.E. Mølholt, D. Naidoo, M. Ncube, S. Shayestehaminzadeh, K. Bharuth‐Ram, M. Fanciulli, H.P. Gislason, G. Langouche, S. Ólafsson, L.M.C. Pereira, U. Wahl, P. Torelli, G. Weyer
From our users
Nat. Commun., 5, 3404, (2014)
Electric control of magnetism at the Fe/BaTiO3 interface
G. Radaelli, D. Petti, E. Plekhanov, I. Fina, P. Torelli, B. R. Salles, M. Cantoni, C. Rinaldi, D. Gutiérrez, G. Panaccione, M. Varela, S. Picozzi, J. Fontcuberta and R. Bertacco
NFFA Thesis
University of Modena and Reggio Emilia Master's Thesis, (2014)
Towards Spin-resolved/Time-resolved Photoelectron Spectroscopy at the fs time scale: construction and commissioning of the ULTRASPIN apparatus
T. Pincelli (Supervisors: S. Valeri, G. Rossi)
Our Research
Rev. Sci. Instrum., 80, 043105, (2009)
Advanced photoelectric effect experiment beamline at Elettra: A surface science laboratory coupled with Synchrotron Radiation
G. Panaccione, I. Vobornik, J. Fujii, D. Krizmancic, E. Annese, L. Giovanelli, F. Maccherozzi, F. Salvador, A. De Luisa, D. Benedetti, A. Gruden, P. Bertoch, F. Polack, D. Cocco, G. Sostero, B. Diviacco, M. Hochstrasser, U. Maier, D. Pescia, C.H. Back, T. Greber, J. Osterwalder, M. Galaktionov, M. Sancrotti, and G. Rossi