Order Parameters and Phase Diagram of MultiferroicRMn2O5

2008/02/29 by A. B. Harris, Amnon Aharony, O. Entin‐Wohlman +1 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Computer science #Condensed matter physics #Coupling (piping) #Ferroelectric and Piezoelectric Materials #Ferroelectricity #Materials science #Multiferroics #Multiferroics and related materials #Order (exchange) #Phase (matter) #Phase diagram #Physics #Quantum mechanics #cond-mat.mtrl-sci #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevlett.100.217202

published as Phys. Rev. Lett. 100, 217202 (2008)

openalex publication_date 2008/05/30 · arxiv created 2008/06/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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.

Citations

• Symmetry constraints on the electrical polarization in multiferroic materials
• Ferroelectricity Induced by Acentric Spin-Density Waves inYMn2O5
• Magnetically Driven Ferroelectric Order inNi3V2O8
• Spin structure and magnetic frustration in multiferroicRMn2O5(R=Tb,Ho,Dy)

Cited by

• First-Principles Modeling of MultiferroicRMn2O5
• Electromagnons in multiferroic RMn2O5compounds and their microscopic origin