Phason mode of electromagnons in terbium manganite with sinusoidal antiferromagnetic structure
- 1 August 2007
- journal article
- Published by AIP Publishing in Low Temperature Physics
- Vol. 33 (8) , 715-717
- https://doi.org/10.1063/1.2770660
Abstract
The interaction of light with electromagnons in a sinusoidally modulated antiferromagnetic phase of TbMnO3 is examined. It is predicted that the frequency dependence of the dielectric tensor εzz changes substantially at the transition from a sinusoidal into a spiral magnetic phase with spontaneous electric polarization. The phason mode of such a transition is an electromagnon mode in which the magnetoelectric phase is due to modulation of the magnetic structure.Keywords
This publication has 9 references indexed in Scilit:
- Features of the magnetoelectric behavior of the family of multiferroics RMn2O5 at high magnetic fields (Review)Low Temperature Physics, 2006
- Possible evidence for electromagnons in multiferroic manganitesNature Physics, 2006
- Magnetic Inversion Symmetry Breaking and Ferroelectricity inPhysical Review Letters, 2005
- Magnetoelectric phase diagrams of orthorhombic(, Tb, and Dy)Physical Review B, 2005
- Colossal Magnetodielectric Effects inPhysical Review Letters, 2004
- Ferroelectricity and Giant Magnetocapacitance in Perovskite Rare-Earth ManganitesPhysical Review Letters, 2004
- Magnetic control of ferroelectric polarizationNature, 2003
- FerroelectromagnetsUspekhi Fizicheskih Nauk, 1982
- Magnetic structure of the perovskite-like compound TbMnO3Physica B+C, 1977