N.R. Leigh
Deriving the Ginzburg-Landau parameter from heat-capacity data on magnetic superconductors with Schottky anomalies
Leigh, N.R.; Hampshire, D.P.
Authors
D.P. Hampshire
Abstract
The specific heat of the Chevrel phase (CP) magnetic superconductors (Sn0.65Eu0.35)Mo6S8 and (Sn0.50Eu0.50)Mo6S8 have been measured in high magnetic fields. The Schottky contributions, including self-field and exchange terms, were calculated and then subtracted to improve determination of the Ginzburg-Landau parameter. Two approximate high-field specific-heat equations are presented which are used to find the free-ion ground state of these CP compounds and the doublet ground-state properties in some rare-earth high-temperature superconductors without advanced computation. The approximate equations allow simple calculation of the degeneracy and moments of the ground-state multiplet and the ordering temperature.
Citation
Leigh, N., & Hampshire, D. (2003). Deriving the Ginzburg-Landau parameter from heat-capacity data on magnetic superconductors with Schottky anomalies. Physical review B, 68(17), https://doi.org/10.1103/physrevb.68.174508
Journal Article Type | Article |
---|---|
Publication Date | 2003-11 |
Deposit Date | Nov 28, 2006 |
Publicly Available Date | Sep 15, 2010 |
Journal | Physical Review B |
Print ISSN | 1098-0121 |
Electronic ISSN | 1550-235X |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 68 |
Issue | 17 |
DOI | https://doi.org/10.1103/physrevb.68.174508 |
Keywords | Temperature. |
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