Low temperature magnetic properties of U1-xPrxAl 2

T. Kuwai*, Y. Miyako

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

2 被引用数 (Scopus)

抄録

The low temperature properties of U1-xPrxAl 2 (0<x<0.15) were studied by susceptibility and specific heat measurements down to 100 mK, focusing attention on the mechanisms of spin fluctuations. The low temperature behavior of C/T has been explained by the paramagnon theory for low energy excitations with long wavelengths. However, the spin fluctuations in wider temperature ranges in UAl2 seems to be more complicted as suggested by a recent nuclear magnetic resonance experiment. In UAl2, the susceptibility and the specific heat show two different temperature ranges, above and below about 50 K where there is a crossover from a single impurity Kondo regime to a low temperature coherent Kondo state. On the other hand, the enormous increase of γ with x in U1-xPr xAl2 seems to be a consequence of the static f and d-band structures near the Fermi level.

本文言語英語
ページ(範囲)5797-5799
ページ数3
ジャーナルJournal of Applied Physics
70
10
DOI
出版ステータス出版済み - 1991

ASJC Scopus 主題領域

  • 物理学および天文学一般

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