Order parameters and phase diagram of multiferroic RMn2O5

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18 Scopus citations


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.

Original languageEnglish
Article number217202
JournalPhysical Review Letters
Issue number21
StatePublished - 30 May 2008

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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