NMR Study on Ferromagnetism and Spin Glass in Ternary (PdCo0.4%)<sub>1-<i>x</i></sub>Mn<sub><i>x</i></sub> Alloys

  • Sakemoto Akito
    Department of Material Physics, Faculty of Engineering Science, Osaka University
  • Kumagai Ken-ichi
    Department of Material Physics, Faculty of Engineering Science, Osaka University
  • Asayama Kunisuke
    Department of Material Physics, Faculty of Engineering Science, Osaka University

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  • NMR Study on Ferromagnetism and Spin Glass in Ternary (PdCo0.4%)<SUB>1−<I>x</I></SUB>Mn<I><SUB>x</SUB></I> Alloys

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NMR of 55Mn in (Pd0.996Co0.004)1−xMnx alloys in a giant moment ferromagnetic and a spin glass state has been observed down to 100 mK. The narrow NMR line at about 405 MHz shifts slightly to lower frequency side with x for x≥4%, which indicates a partial cancellation of the contribution of hyperfine field from the neighboring impurities in the spin glass state. No abrupt change in the relaxation time has been found through the phase change from the ferromagnetic to the spin glass state.

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