Magnetic-Field-Induced magnetic phase transitions associated with ferroelectricity in multiferroic ErMn 2O 5

Hiroyuki Kimura, Shuichi Wakimoto, Mamoru Fukunaga, Yukio Noda, Koji Kaneko, Naoto Metoki, Kazuhisa Kakurai, Kay Kohn

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Microscopic magnetic properties under the application of a magnetic field were investigated in multiferroic ErMn2O5 using neutron diffraction. Below T = 8K upon applying a magnetic field along the c-axis, an incommensurate- commensurate-incommensurate magnetic phase transition occurred. On the contrary, when the magnetic field was applied parallel to the a-axis, no phase transition occurred up to H = 5 T. H-T phase diagrams obtained in the present study show a one-to-one correspondence with H-T phase diagrams for previously obtained dielectric properties, indicating that the field-induced dielectric transition was triggered by magnetic phase transition. The contrastive phase diagram between H || c and H || a suggests that the induced Er 3+ magnetic moment contributed significantly to the magnetic and dielectric responses to the magnetic field.

Original languageEnglish
Article number034718
Journaljournal of the physical society of japan
Volume78
Issue number3
DOIs
Publication statusPublished - Mar 1 2009

Keywords

  • Colossal magnetoelectric effect
  • Ferroelectricity
  • Magnetic phase transition
  • Multiferroics
  • Neutron diffraction under magnetic field
  • Rare-earth magnetic moment

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kimura, H., Wakimoto, S., Fukunaga, M., Noda, Y., Kaneko, K., Metoki, N., Kakurai, K., & Kohn, K. (2009). Magnetic-Field-Induced magnetic phase transitions associated with ferroelectricity in multiferroic ErMn 2O 5 journal of the physical society of japan, 78(3), [034718]. https://doi.org/10.1143/JPSJ.78.034718