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

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5 Citations (Scopus)


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
Issue number3
Publication statusPublished - Mar 2009


  • 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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