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Abstract
We report the basic physical properties of monoclinic Y8Co5 determined by means of magnetic susceptibility, electrical resistivity, and specific heat measurements. The crystal structure of Y8Co5 is monoclinic (P21/c) with lattice parameters a = 7.0582(6) Å, b = 7.2894(6) Å, c = 24.2234(19) Å, and β = 102.112(6)° as refined by using synchrotron powder x-ray diffraction data. The compound shows temperature independent paramagnetism with χ0 = 2.1 × 10−3 emu mol−1 and Sommerfeld parameter γ = 63 mJ mol−1 K−2. The calculated Wilson ratio for Y8Co5, RW = 1.4, is close to that expected for a free electron gas RW = 1. Low temperature resistivity under high pressure does not reveal superconductivity in this compound down to 1.2 K, up to hydrostatic pressures of 5.56 GPa. Band structure calculations (full-potential linearized augmented plane wave, FP-LAPW) derive the Stoner exchange interaction parameter S = 0.24, excluding magnetic behavior for Y8Co5.
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Authors (9)
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V. A . Sidorov
- Vereshchagin Institute of High Pressure Physics ..
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A. Szajek
- Polish Academy of Sciences Institute of Molecular Physics
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M. Werwiński
- Polish Academy of Sciences Institute of Molecular Physics
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S. A. J. Kimber
- European Synchrotron Radiation Facility (ESRF) ..
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D. Safarik
- Los Alamos National Laboratory ...
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J. D. Thompson
- Los Alamos National Laboratory ...
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R. J. Cava
- Department of Chemistry, Princeton University, Princeton ..
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF PHYSICS-CONDENSED MATTER
no. 25,
edition 12,
pages 1 - 7,
ISSN: 0953-8984 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Klimczuk T., Sidorov V., Szajek ., Werwiński M., Kimber S., Kozub A., Safarik D., Thompson J., Cava R.: Structure and paramagnetism in weakly correlated Y8Co5// JOURNAL OF PHYSICS-CONDENSED MATTER. -Vol. 25, iss. 12 (2013), s.1-7
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/0953-8984/25/12/125701
- Verified by:
- Gdańsk University of Technology
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