Superconductivity in SrNi2As2 Single Crystals

Abstract

The electrical resistivity ρ(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 γ= 8.7 mJ/mol K^2 and a small upper critical field H_{c2} \sim 200 Oe. No superconductivity was found in EuNi2As2 above 0.4 K, but anomalies in ρand C reveal that magnetic order associated with the Eu^{2+} magnetic moments occurs at T_m = 14 K.

8 pages, 5 figures

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Cited by in corpus (4)

• Structure and Anisotropic Properties of BaFe2-xNixAs2 (x = 0, 1, 2) Single Crystals
• Superconductivity and the Effects of Pressure and Structure in Single Crystalline SrNi${}_2$P${}_2$
• Evolution of bulk superconductivity in SrFe2As2 with Ni substitution
• Stoichiometry, Spin Fluctuations, and Superconductivity in LaNiPO