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Spontaneous Rotation of Ferrimagnetism Driven by Antiferromagnetic Spin Canting
A. M. Vibhakar, D. D. Khalyavin, P. Manuel +3
Spin-reorientation phase transitions that involve the rotation of a crystals magnetization have been well characterized in distorted-perovskite oxides such as the orthoferrites.…
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…
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…
Lattice and spin excitations in multiferroic h-YbMnO3
J. Liu, C. Toulouse, P. Rovillain +6
Lattice and spin excitations have been studied by Raman scattering in hexagonal YbMnO3 single crystals. The temperature dependences of the phonon modes show that the E2 mode at 256…
Electromagnon and phonon excitations in multiferroic TbMnO3
P. Rovillain, J. Liu, M. Cazayous +4
We have performed Raman measurements on TbMnO3 single crystal under magnetic field along the three crystallographic directions. The flip of the spin spiral plane creates an electro…
Current heating of a magnetic 2DEG in HgMnTe/HgCdTe quantum wells
Y. S. Gui, C. R. Becker, J. Liu +5
Heating caused by electrons with excess kinetic energy has been investigated in a magnetic two-dimensional electron gas, M2DEG, in HgMnTe/HgCdTe(001) quantum wells. The temperature…