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Superconducting and normal-state properties of APd(2)As(2) (A = Ca, Sr, Ba) single crystals

TitleSuperconducting and normal-state properties of APd(2)As(2) (A = Ca, Sr, Ba) single crystals
Publication TypeJournal Article
Year of Publication2013
AuthorsAnand, VK, Kim, H, Tanatar, MA, Prozorov, R, Johnston, DC
JournalPhysical Review B
Volume87
Pagination224510
Date Published06
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000320761700004
Keywordshc2, high-field superconductors, high-temperature superconductivity, magnetic-susceptibility, metals, penetration depth, pnictides, purity dependence, transition
Abstract

chi(ab) for SrPd2As2. The normal and superconducting state data indicate that CaPd2As2 and SrPd2As2 are conventional type-II nodeless s-wave electron-phonon superconductors. The electronic superconducting state heat capacity data for CaPd2As2, which has an extremely sharp heat capacity jump at T-c, are analyzed using our recent elaboration of the alpha-model of the BCS theory of superconductivity, which indicates that the s-wave gap in this compound is anisotropic in momentum space.

DOI10.1103/PhysRevB.87.224510
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Complex States