Effects of a strong gravitational field on Mn-trimers and magnetic properties of hexagonal YMnO 3 single crystal

Makoto Tokuda, Tsutomu Mashimo, Weijian Ma, Shinya Hayami, Shinji Ando, Tadao Nishiyama, Akira Yoshiasa

Research output: Contribution to journalArticlepeer-review

Abstract

Under strong gravitational fields, the unique uniaxially distorted crystalline state induces structural changes in compounds other than those caused by high pressure and high temperature. We subjected the hexagonal YMnO 3 single crystal to a strong-gravitational field (0.78 × 10 6 G, 400 °C) and determined the changes in the crystalline structure and physical properties of the recovered metastable sample. According to four-circle single-crystal X-ray diffraction data, the structural analyses indicated changes in the inequivalent nearest-neighbor Mn-Mn and Mn-O bond distances, thereby demonstrating that trimerization distortion occurred in the ab plane under the strong gravitational field. Magnetic measurements indicated that there were changes in the magnetic anisotropy, which were explained by changes in the spin–orbit interaction due to lattice distortion.

Original languageEnglish
Pages (from-to)172-179
Number of pages8
JournalJournal of Physics and Chemistry of Solids
Volume129
DOIs
Publication statusPublished - 2019 Jun
Externally publishedYes

Keywords

  • Crystal structure
  • Magnetic properties
  • Strong-gravitational field
  • YMnO

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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