Mössbauer Study on the Magnetic Properties of a Single Crystalline Bi3Fe5O12 Film

Tatsuo Fujii, Mikio Takano, Yoshichika Bando, Takashi Okuda

Research output: Contribution to journalArticle

Abstract

Very recently, an artificial new material “bismuth iron garnet” was prepared for the first time with a reactive ion-beam-sputterring method. A magnetic characterization of this single crystalline garnet film was achieved by applying conversion electron Mössbauer spectroscopy (CEMS). To examine the temperature dependence of sublattice magnetization, CEMS measurments were made at 6, 78, 290, and 670 K, i.e. in both the ferrimagnetic and paramagnetic regions. The magnetic and quadrupole hyperfine interactions as compared with YIG indicated continuous effects of lattice expansion owing to the large spherical size of Bi3+ ions. The temperature dependence of sublattice magnetization has been explained by the two-sublattice molecular field model with a molecular field constant Nad slightly modified from that of YIG.

Original languageEnglish
Pages (from-to)427-430
Number of pages4
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Volume38
Issue number3
DOIs
Publication statusPublished - 1991

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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