Coherent Kondo State in Amorphous Ce-Ru Alloy

Yoshiya Homma, Kenji Sumiyama, Hiroshi Yamauchi, Kenji Suzuki

研究成果: Article査読

13 被引用数 (Scopus)

抄録

In an amorphous Ce-42 at %Ru alloy produced by sputtering, the electronic specific heat coefficient rapidly increases with decreasing temperature, T, below 5 K. The magnetic susceptibility obeys the Curie-Weiss law above 100 K; it is enhanced below 100 K and saturated below 6 K. The electrical resistivity, p, is large due to disorder scattering. With decreasing T, p increases for T>40K, showing -log T dependence (the incoherent Kondo effect) and decreases for r<40K (the coherent Kondo effect). The 4f electrons strongly correlate with the conduction electrons to form the singlet Fermi Uquid state even in the random alloy.

本文言語English
ページ(範囲)1442-1445
ページ数4
ジャーナルjournal of the physical society of japan
62
5
DOI
出版ステータスPublished - 1993 1 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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