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Abstract
We present the crystallographic analysis, superconducting and spectroscopic characterization, and theoretical modeling of CeIr3. Lattice parameters a = 5.2945(1) Å and c = 26.219(1) Å are found for the R-3m symmetry crystal structure, which are close to the literature values. CeIr3 is a moderate type-II superconductor (κ GL = 17, λ e–p = 0.65) below 2.5 K. Ce ions exhibit a strongly intermediate valence character as evidenced by x-ray photoelectron spectroscopy. The normal state magnetic susceptibility is weakly temperature dependent and follows the inter-configuration fluctuation model with a singlet Ce−4 f 0 ground state. Theoretical calculations support a non-magnetic ground state of the system and reveal that Ir−5d states are dominant at the Fermi level.
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Authors (9)
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Elizabeth M. Carnicom
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Sylwia Gołąb
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Bartłomiej Wiendlocha
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Weiwei Xie
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Dariusz Kaczorowski
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Robert J. Cava
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
no. 32,
edition 2,
pages 1 - 14,
ISSN: 0953-2048 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Górnicka K., Carnicom E. M., Gołąb S., Łapiński M. S., Wiendlocha B., Xie W., Kaczorowski D., Cava R. J., Klimczuk T.: CeIr3: superconductivity in a phase based on tetragonally close packed clusters// SUPERCONDUCTOR SCIENCE & TECHNOLOGY. -Vol. 32, iss. 2 (2019), s.1-14
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1361-6668/aaf48f
- Verified by:
- Gdańsk University of Technology
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