284 citations · 2.5k across the 47 of their papers we have counts for
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Tracing the horizon of tetragonal-to-monoclinic distortion in pressurized trilayer nickelate La4Ni3O10
Sitaram Ramakrishnan, Yingzheng Gao, Valerio Olevano +18
The crux of understanding the superconducting mechanism in pressurized Ruddlesden-Popper nickelates hinges on elucidating their structural phases. Under ambient conditions, the tri…
The role of the rare earth in the lattice and magnetic coupling in multiferroic h-HoMnO3
J. Liu, Y. Gallais, M-A. Measson +3
We used Raman scattering to study the lattice and magnetic excitations in the hexagonal HoMnO3 single crystals. The E2 phonon mode at 237 cm-1 is affected by the magnetic order. Th…
Magnetic transitions in CaMn7O12 : a Raman observation of spin-phonon couplings
C. Toulouse, C. Martin, M-A. Measson +3
The quadruple Calcium manganite (CaMn7O12) is a multiferroic material that exhibits a giant magnetically-induced ferroelectric polarization which makes it very interesting for magn…
Driving spin excitations by hydrostatic pressure in BiFeO3
J. Buhot, C. Toulouse, Y. Gallais +10
Optical spectroscopy has been combined with computational and theoretical techniques to show how the spin dynamics in the model multiferroic BiFeO3 responds to the application of h…
Symmetry of the Excitations in the Hidden Order State of URu2Si2
J. Buhot, M. -A. Méasson, Y. Gallais +4
We have performed polarized electronic Raman scattering on URu2Si2 single crystals at low temperature down to 8 K in the hidden order state and under magnetic field up to 10 T. The…
Lattice and spin excitations in multiferroic h-YMnO3
C. Toulouse, L. Chaix, J. Liu +11
We used Raman and terahertz spectroscopies to investigate lattice and magnetic excitations and their cross-coupling in the hexagonal YMnO3 multiferroic. Two phonon modes are strong…