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Abstract
Resistivity, dc magnetization, and heat capacity measurements are reported for superconducting NaBi. Tc, the electronic contribution to the specific heat γ, the ΔCp/γTc ratio, and the Debye temperature are found to be 2.15 K, 3.4 mJ mol−1 K−2, 0.78, and 140 K respectively. The calculated electron–phonon coupling constant (λep = 0.62) implies that NaBi is a moderately coupled superconductor. The upper critical field and coherence length are found to be 250 Oe and 115 nm, respectively. Electronic structure calculations show NaBi to be a good metal, in agreement with the experiments; the px and py orbitals of Bi dominate the electronic states at the Fermi Energy.
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Authors (8)
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S. K. Kushwaha
- Princeton University Department of Chemistry
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J. W. Krizan
- Princeton University Department of Chemistry
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J. Xiong
- Princeton University Department of Physics
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Q. D. Gibson
- Princeton University Department of Chemistry
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T. Liang
- Princeton University Department of Physics
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N.p. Ong
- Princeton University Department of Physics
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R. J. Cava
- Princeton University Department of Chemistry,
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF PHYSICS-CONDENSED MATTER
no. 26,
edition 21,
pages 1 - 6,
ISSN: 0953-8984 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Kushwaha S., Krizan J., Xiong J., Klimczuk T., Gibson Q., Liang T., Ong N., Cava R.: Superconducting properties and electronic structure of NaBi// JOURNAL OF PHYSICS-CONDENSED MATTER. -Vol. 26, iss. 21 (2014), s.1-6
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/0953-8984/26/21/212201
- Verified by:
- Gdańsk University of Technology
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