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Superconductivity and physical properties of CaPd2Ge2 single crystals

TitleSuperconductivity and physical properties of CaPd2Ge2 single crystals
Publication TypeJournal Article
Year of Publication2014
AuthorsAnand, VK, Kim, H, Tanatar, MA, Prozorov, R, Johnston, DC
JournalJournal of Physics-Condensed Matter
Volume26
Pagination405702
Date Published10
Type of ArticleArticle
ISBN Number0953-8984
Accession NumberWOS:000343423400009
Keywordsanisotropic gap, chemistry, critical field hc2, high-temperature superconductivity, magnetic-properties, penetration depth, pnictides, purity dependence, state, superconductivity
Abstract

chi(c). The C-p(T) data confirm the bulk superconductivity below T-c = 1.69(3) K. The superconducting state electronic heat capacity is analyzed within the framework of a single-band alpha-model of BCS superconductivity and various normal and superconducting state parameters are estimated. Within the alpha-model, the C-p(T) data and the ab plane lambda(T) data consistently indicate a moderately anisotropic s-wave gap with Delta(0)/ k(B)T(c) approximate to 1.6, somewhat smaller than the BCS value of 1.764. The relationship of the heat capacity jump at T-c and the penetration depth measurement to the anisotropy in the s-wave gap is discussed.

DOI10.1088/0953-8984/26/40/405702
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Complex States