Department of Physics Papers

Document Type

Journal Article

Date of this Version

5-30-2008

Publication Source

Physical Review Letters

Volume

100

Start Page

217202-1

Last Page

217202-4

DOI

10.1103/PhysRevLett.100.217202

Abstract

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.

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Date Posted: 20 August 2015

This document has been peer reviewed.