Nuclear magnetic resonance of ferromagnetic Mn3AlC and Mn3GaC

  • Kenmotsu Akihiro
    The Research Institute for Iron, Steel and Other Metals, Tohoku University
  • Shinohara Takeshi
    The Research Institute for Iron, Steel and Other Metals, Tohoku University
  • Watanabe Hiroshi
    The Research Institute for Iron, Steel and Other Metals, Tohoku University

書誌事項

タイトル別名
  • Nuclear Magnetic Resonance of Ferromagnetic Mn<SUB>3</SUB>AlC and Mn<SUB>3</SUB>GaC
公開日
1972
DOI
  • 10.1143/jpsj.32.377
公開者
一般社団法人 日本物理学会

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説明

The nuclear magnetic resonances in metallic perovskite compounds Mn3AlC and Mn3GaC have been studied. In Mn3AlC the Al27 and Mn55 resonances are observed at 78 and 140 MHz, respective at 4.2 K. The corresponding hyperfine fields at Mn55 and Al27 and 133 and 70 kOe at 0 K, respectively. In Mn3GaC three signals are observed only in the ferromagnetic phase. The resonances occur at 120, 156.5 and 199 MHz at 136 K, which are assigned to Mn55, Ga69 and Ga71 nuclei, respectively. The hyperfine fields at Mn55 and Ga nuclei are 123 and 163 kOe at 0 K respectively.<BR>The temperature dependence of the frequencies and the echo intensity have been measured.

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