NMR Study of an Effective J value in Dilute Ag-Mn Alloys

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概要

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• Magnetic susceptibility and NMR measurement on dilute Ag-Mn alloys have been made at temperatures between 1.5 K and 300 K. The manganese concentrations are 25, 42, 81 and 470 ppm. The impurity contribution to the observed line widths is proportional to the impurity concentration and the averaged impurity spin which is determined from the susceptibility data. The effective J value is derived is from the proportionality constant as ∣J∣=1.1±0.1 eV. For the derivation of the J value the local field distribution caused by the impurity due to the RKKY interaction and the direct dipolar interaction has been calculated. This magnitude of J is different by a factor of 5.5±0.5 from the value obtained from T_K=40 mK.

• 社団法人日本物理学会の論文
• 1971-03-02

著者

• Mizuno Kiyoshi

  Department Of Physics Tokyo Metropolitan University

• Mizuno Kiyoshi

  Department Of Physics Faculty Of Sciene Tokyo Metropolitan University

• Mizuno Kiyoshi

  Department Of Gastroenterology Kasugai Municipal Hospital

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