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Fe-57 Mossbauer study of stoichiometric iron-based superconductor CaKFe4As4: a comparison to KFe2As2 and CaFe2As2

TitleFe-57 Mossbauer study of stoichiometric iron-based superconductor CaKFe4As4: a comparison to KFe2As2 and CaFe2As2
Publication TypeJournal Article
Year of Publication2017
AuthorsBud'ko, SL, Kong, T, Meier, WR, Ma, XM, Canfield, PC
JournalPhilosophical Magazine
Volume97
Pagination2689-2703
Date Published07
Type of ArticleArticle
ISBN Number1478-6435
Accession NumberWOS:000407828000006
Keywordselectric-field gradients, hyperfine parameters, Materials Science, Metallurgical Engineering, Mossbauer spectroscopy, noncubic metals, physics, superconductors, temperature-dependence
Abstract

. The hyperfine parameters of CaKFe4As4 are compared with those for KFe2As2 measured in this work, and the literature data for CaFe2As2, and were found to be in between those for these two, ordered, 122 compounds, in agreement with the gross view of CaKFe4As4 as a structural analog of KFe2As2 and CaFe2As2 that has alternating Ca-and K-layers in the structure.

DOI10.1080/14786435.2017.1347726
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Complex States