Specific Heat of Ce{sub 0.8}La{sub 0.2}Al{sub 3} in Magnetic Fields: A Test of the Anisotropic Kondo Picture
Journal Article
·
· Physical Review Letters
The specific heat C of Ce{sub 0.8}La {sub 0.2}Al{sub 3} has been measured as a function of temperature T in magnetic fields up to 14T. A large peak in C at 2.3K has recently been ascribed to an anisotropic Kondo effect in this compound. A 14-T field depresses the temperature of the peak by only 0.2K, but strongly reduces its height. The corresponding peak in C/T shifts from 2.1K at zero field to 1.7K at 14T. The extrapolated specific heat coefficient {gamma}=lim/T{yields}0 C/T increases with field over the range studied. We show that these trends are inconsistent with the anisotropic Kondo model.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205817
- Journal Information:
- Physical Review Letters, Vol. 86, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.86.1090; Othernumber: PRLTAO000086000006001090000001; 054106PRL; PBD: 5 Feb 2001; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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