TY - JOUR
T1 - Order parameters and phase diagram of multiferroic RMn2O5
AU - Harris, A. B.
AU - Aharony, Amnon
AU - Entin-Wohlman, Ora
PY - 2008/5/30
Y1 - 2008/5/30
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=44649141521&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.100.217202
DO - 10.1103/PhysRevLett.100.217202
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AN - SCOPUS:44649141521
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 217202
ER -