Characteristic spin fluctuations in Y(Mn1-xAlx) 2

M. Shiga, H. Wada, H. Nakamura, K. Yoshimura, Y. Nakamura

研究成果: Contribution to journalArticle査読

54 被引用数 (Scopus)

抄録

The thermal expansion and magnetic susceptibility have been measured for Y(Mn1-xAlx)2 pseudobinary Laves phase intermetallic compounds. A large volume change at TN and a remarkable enhancement of the thermal expansion coefficient above TN were observed in YMn2. The substitution of Al for Mn makes these anomalies less clear. The temperature dependence of the susceptibility, being almost temperature independent for YMn2, becomes of the Curie-Weiss type as the Al content increases. Such behaviour is explained as the characteristic features of spin fluctuations. The amplitude of local spin fluctuations at the Mn site has been estimated on the basis of the phenomenological theory of magnetovolume effects. It has been revealed that the magnetic ground state of Al-substituted compounds is a spin glass.

本文言語英語
論文番号023
ページ(範囲)1781-1793
ページ数13
ジャーナルJournal of Physics F: Metal Physics
17
8
DOI
出版ステータス出版済み - 12 1 1987
外部発表はい

All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(その他)
  • 金属および合金

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