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Your search keyword '"di Gennaro, E."' showing total 9 results
Start Over Author "di Gennaro, E." Journal physical review b
9 results on '"di Gennaro, E."'

2. Interplay between spin-orbit coupling and ferromagnetism in magnetotransport properties of a spin-polarized oxide two-dimensional electron system

Author

Stornaiuolo, D., primary, Jouault, B., additional, Di Gennaro, E., additional, Sambri, A., additional, D'Antuono, M., additional, Massarotti, D., additional, Granozio, F. Miletto, additional, Di Capua, R., additional, De Luca, G. M., additional, Pepe, G. P., additional, Tafuri, F., additional, and Salluzzo, M., additional

Published
2018
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4. Transport properties of a quasi-two-dimensional electron system formed inLaAlO3/EuTiO3/SrTiO3heterostructures

Author

De Luca, G. M., primary, Di Capua, R., additional, Di Gennaro, E., additional, Granozio, F. Miletto, additional, Stornaiuolo, D., additional, Salluzzo, M., additional, Gadaleta, A., additional, Pallecchi, I., additional, Marrè, D., additional, Piamonteze, C., additional, Radovic, M., additional, Ristic, Z., additional, and Rusponi, S., additional

Published
2014
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8. Multiple-magnon excitations shape the spin spectrum of cuprate parent compounds

Author

Nicholas B. Brookes, George A. Sawatzky, Davide Betto, R. Fumagalli, Matteo A. C. Rossi, Emiliano Di Gennaro, José Lorenzana, A. Sambri, Giacomo Claudio Ghiringhelli, Kazuyoshi Yoshimi, Doug Bonn, Leonardo Martinelli, Riccardo Piombo, D. Di Castro, Lucio Braicovich, Betto, D., Fumagalli, R., Martinelli, L., Rossi, M., Piombo, R., Yoshimi, K., Di Castro, D., Di Gennaro, E., Sambri, A., Bonn, D., Sawatzky, G. A., Braicovich, L., Brookes, N. B., Lorenzana, J., and Ghiringhelli, G.

Subjects
Settore FIS/01, Physics, Condensed matter physics, Scattering, Condensed Matter - Superconductivity, Magnon, FOS: Physical sciences, Order (ring theory), magnetism RIXS cuprate, Inelastic neutron scattering, Superconductivity (cond-mat.supr-con), MULTIMAGNON OPTICAL-ABSORPTION, X-RAY-SCATTERING, DYNAMICS, STATES, Antiferromagnetism, Condensed Matter::Strongly Correlated Electrons, Continuum (set theory), Energy (signal processing), Spin-½
Abstract

Thanks to high resolution and polarization analysis, resonant inelastic x-ray scattering (RIXS) magnetic spectra of La2CuO4, Sr2CuO2Cl2 and CaCuO2 reveal a rich set of properties of the spin 1/2 antiferromagnetic square lattice of cuprates. The leading single-magnon peak energy dispersion is in excellent agreement with the corresponding inelastic neutron scattering measurements. However, the RIXS data unveil an asymmetric lineshape possibly due to odd higher order terms. Moreover, a sharp bimagnon feature emerges from the continuum at (1/2,0), coincident in energy with the bimagnon peak detected in optical spectroscopy. These findings show that the inherently complex spin spectra of cuprates, an exquisite manifestation of quantum magnetism, can be effectively explored by exploiting the richness of RIXS cross sections., 7 pages, 3 figures

Published
2021

9. Octahedral rotation patterns in strained EuFeO3 and other Pbnm perovskite films: Implications for hybrid improper ferroelectricity.

Author

Choquette, A. K., Smith, C. R., Sichel-Tissot, R. J., Moon, E. J., Scafetta, M. D., Di Gennaro, E., Granozio, F. Miletto, Karapetrova, E., and May, S. J.

Subjects
*EUROPIUM compounds, *PEROVSKITE, *FERROELECTRICITY
Abstract

We report the relationship between epitaxial strain and the crystallographic orientation of the in-phase rotation axis and A-site displacements in Pbnm-type perovskite films. Synchrotron diffraction measurements of EuFeO3 films under strain states ranging from 2% compressive to 0.9% tensile on cubic or rhombohedral substrates exhibit a combination of a-a+c- and a+a-c- rotational patterns. We compare the EuFeO3 behavior with previously reported experimental and theoretical work on strained Pbnm-type films on nonorthorhombic substrates, as well as additional measurements from LaGaO3,LaFeO3, and Eu0.7Sr0.3MnO3 films on SrTiO3. Compiling the results from various material systems reveals a general strain dependence in which compressive strain strongly favors a-a+c- and a+a-c- rotation patterns and tensile strain weakly favors a-a-c+ structures. In contrast, EuFeO3 films grown on Pbnm-type GdScO3 under 2.3% tensile strain take on a uniform a-a+c- rotation pattern imprinted from the substrate, despite strain considerations that favor the a-a-c+ pattern. These results point to the use of substrate imprinting as a more robust route than strain for tuning the crystallographic orientations of the octahedral rotations and A-site displacements needed to realize rotation-induced hybrid improper ferroelectricity in oxide heterostructures. [ABSTRACT FROM AUTHOR]

Published
2016
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