Suppression and recovery of the ferroelectric phase in multiferroic MnW O4

R. P. Chaudhury, B. Lorenz, Y. Q. Wang, Y. Y. Sun, C. W. Chu

研究成果: Article同行評審

45 引文 斯高帕斯(Scopus)

摘要

We report the discovery of a complete suppression of ferroelectricity in MnW O4 by 10% iron substitution and its restoration in external magnetic fields. The spontaneous polarization in Mn0.9 Fe0.1 W O4 arises below 12 K in external fields above 4 T. The magnetic and/or ferroelectric phase diagram is constructed from the anomalies of the dielectric constant, polarization, magnetization, and heat capacity. The observations are qualitatively described by a mean-field model with competing interactions and strong anisotropy. We propose that the magnetic field induces a noncollinear inversion symmetry breaking magnetic structure in Mn0.9 Fe0.1 W O4.

原文English
文章編號104406
期刊Physical Review B - Condensed Matter and Materials Physics
77
發行號10
DOIs
出版狀態Published - 2008 3月 7

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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