Ferroelectricity in perovskite HoMn O3 and YMn O3

Bernd Lorenz, Ya Qi Wang, Ching Wu Chu

Research output: Contribution to journalArticlepeer-review

180 Citations (Scopus)

Abstract

Ferroelectricity is observed in orthorhombic HoMn O3 and YMn O3 at the magnetic lock-in transitions into an E -type structure or an incommensurate phase with a temperature independent wave vector, respectively. In HoMn O3, the ferroelectric polarization strongly depends on the external magnetic field, indicating the involvement of the rare earth moment order in this compound. The results are discussed within the framework of recent theoretical models, in particular, the double exchange driven polar displacements predicted for E -type magnetic structures.

Original languageEnglish
Article number104405
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number10
DOIs
Publication statusPublished - 2007 Sep 7

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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