Superconductivity in SrNi2As2 single crystals

被引：117

作者：

Bauer, E. D. ^{[1
]}

Ronning, F. ^{[1
]}

Scott, B. L. ^{[1
]}

Thompson, J. D. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.78.172504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrical resistivity rho(T) and heat capacity C(T) on single crystals of SrNi2As2 and EuNi2As2 are reported. While there is no evidence for a structural transition in either compound, SrNi2As2 is found to be a bulk superconductor at T-c=0.62 K with a Sommerfeld coefficient of gamma=8.7 mJ/mol K-2 and a small upper critical field H-c2 similar to 200 Oe. No superconductivity was found in EuNi2As2 above 0.4 K, but anomalies in rho and C reveal that magnetic order associated with the Eu2+ magnetic moments occurs at T-m=14 K.

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页数：3

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