Control of ferroelectric polarization in multiferroic YMn2O 5 by external pressure

R. P. Chaudhury, C. R. Dela Cruz, B. Lorenz, Y. Y. Sun, C. W. Chu, S. Park, S. W. Cheong

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1 Citation (Scopus)

Abstract

We show that the application of external hydrostatic pressure can reverse the ferroelectric polarization of multiferroic YMn2O5 at low temperatures. This unique effect is explained by the peculiarities of the highly frustrated magnetic order that is typical for all RMn2O 5 (R=rare earth) in the commensurate and incommensurate phases. Our results indicate that the pressure changes the relative phase of adjacent antiferromagnetic spin chains propagating along the orthorhombic a-axis. With further compression the incommensurate phase transforms into the commensurate phase with the highest ferroelectric polarization.

Original languageEnglish
Article number042013
JournalJournal of Physics: Conference Series
Volume150
Issue number4
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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