284 citations · 2.6k across the 65 of their papers we have counts for
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Size-dependent bistability in multiferroic nanoparticles
Marc Allen, Ian Aupiais, Maximilien Cazayous +1
Most multiferroic materials with coexisting ferroelectric and magnetic order exhibit cycloidal antiferromagnetism with wavelength of several nanometers. The prototypical example is…
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…
Intimate link between Charge Density Wave, Pseudogap and Superconducting Energy Scales in Cuprates
B. Loret, Y. Gallais, M. Cazayous +6
The cuprate high temperature superconductors develop spontaneous charge density wave (CDW) order below a temperature and over a wide range of hole doping (p). An outstand…
Pressure induced collapse of the charge density wave and Higgs mode visibility in 2H-TaS
Romain Grasset, Yann Gallais, Alain Sacuto +4
The pressure evolution of the Raman active electronic excitations of the transition metal dichalcogenides 2H-TaS is followed through the pressure phase diagram embedding incomm…
Raman Scattering as a Selective Probe of Chiral Electronic Excitations in Bilayer Graphene
Elisa Riccardi, Oleksiy Kashuba, Maximilien Cazayous +3
We report a symmetry resolved electronic Raman scattering (ERS) study of a bilayer graphene device under gate voltage. We show that the ERS continuum is dominated by interband chir…