Date of this Version
Physical Review Letters
The generic magnetic phase diagram of multiferroic RMn2O5 (with R=Y, Ho, Tb, Er, Tm), which allows different sequences of ordered magnetic structures for different R’s and different control parameters, is described using order parameters which explicitly incorporate the magnetic symmetry. A phenomenological magnetoelectric coupling is used to explain why some of these magnetic phases are also ferroelectric. Several new experiments, which can test this theory, are proposed.
Harris, A., Aharony, A., & Entin-Wohlman, O. (2008). Order Parameters and Phase Diagram of Multiferroic RMn2O5. Physical Review Letters, 100 217202-1-217202-4. http://dx.doi.org/10.1103/PhysRevLett.100.217202
Date Posted: 20 August 2015
This document has been peer reviewed.