SUPERCONDUCTIVITY TO 21-K IN INTERMETALLIC THORIUM-BASED BORIDE CARBIDES

被引：47

作者：

SARRAO, JL

DEANDRADE, MC

HERRMANN, J

HAN, SH

FISK, Z

MAPLE, MB

CAVA, RJ

机构：

[1] AT&T BELL LABS, MURRAY HILL, NJ 07974 USA

[2] UNIV CALIF SAN DIEGO, INST PURE & APPL PHYS SCI, LA JOLLA, CA 92093 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 229卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90813-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the observation of superconductivity in intermetallic thorium-based boride carbides. For ThM2B2C, superconducting T(c)'s of 6 K (M = Ni), 6.5 K (M = Pt), and 14.5 K (M = Pd) have been measured. These compounds are isostructural with the recently reported LnNi2B2C superconductors. We have also observed bulk superconductivity in an as-yet-undetermined thorium-palladium-boron-carbon quaternary phase at 21.5 K. Critical-field measurements on the two palladium-based superconductors, as well as the pressure dependence of T(c) for the 21.5 K superconductor, are reported.

引用

页码：65 / 69

页数：5

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