Superconductivity in amorphous Cr films

H. Aoki, Y. Asada, T. Hatano, K. Nakamura, K. Ogawa, Y. Makino

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Superconducting transition has been observed for the first time in amorphous Cr films prepared by co-sputtering of Cr and BN. Superconducting transition temperatures (Tc) up to 1.14 K have been observed with an orbital contribution (i.e.(dHc2⊥/dT)Tc) as large as 49 kOe K-1. The electronic specific heat coefficient (γ) has been estimated to be about 1.6 times as large as that of amorphous Mo-BN (or Mo-metalloid) alloys. This finding, i.e. the low Tc with the large γ for amorphous Cr is inconsistent with data reported for amorphous alloys of 4d and 5d transition elements. This inconsistency implies a formation of local magnetic moments or spin fluctuation in the amorphous Cr film.

本文言語English
ページ(範囲)735-737
ページ数3
ジャーナルSolid State Communications
60
9
DOI
出版ステータスPublished - 1986 12月

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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