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- Title
Correlation Between T and Hyperfine Parameters of Fe in Layered Chalcogenide Superconductors.
- Authors
Shylin, Sergii; Ksenofontov, Vadim; Medvedev, Sergey; Felser, Claudia
- Abstract
Although pairing mechanism in unconventional superconductors is still an open question, the density of states at the Fermi level is considered to be one of the factors affecting the superconducting transition temperature. Herein, we report on Fe-Mössbauer studies of β-FeSe, FeSe Te , and Rb Fe Se superconductors as well as two intercalate products consisting of FeSe layers and a lithium-containing molecular spacer in between. In these materials, the hyperfine parameters of Fe are directly related to the 3 d-electron density on Fe atoms and show strong correlation with superconducting properties.
- Subjects
CHALCOGENIDES; SUPERCONDUCTORS; HYPERFINE structure; IRON; SUPERCONDUCTING transition temperature
- Publication
Journal of Superconductivity & Novel Magnetism, 2016, Vol 29, Issue 3, p573
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-015-3299-8