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Abstract
We present the synthesis and experimental characterization of the electronic properties of the cubic Laves phase superconductor CaRh2. Its crystal structure was confirmed by powder X-ray diffraction and its ambient temperature lattice parameter (a = 7.5326(6) Å) is in good agreement with the literature. Magnetization, resistivity and heat-capacity measurements indicate that CaRh2 is a moderate-coupling type-II superconductor (λe-p = 0.89) with a transition temperature Tc = 5.13 K. A sharp discontinuity at Tc in the heat capacity shows that the normalized specific-heat jump is C/γTc = 1.78, which exceeds the value predicted by weak-coupling BCS theory (1.43).
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Authors (3)
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Robert J. Cava
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF ALLOYS AND COMPOUNDS
no. 793,
pages 393 - 399,
ISSN: 0925-8388 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Górnicka K., Cava R., Klimczuk T.: The electronic characterization of the cubic Laves-phase superconductor CaRh2// JOURNAL OF ALLOYS AND COMPOUNDS. -Vol. 793, (2019), s.393-399
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jallcom.2019.04.199
- Verified by:
- Gdańsk University of Technology
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