(La1−xCex)Al2 specific heat curves in the extended reduced s–d model

M. Wiśniewski and J. Maćkowiak

Physica A: Statistical Mechanics and its Applications, 1998, vol. 256, issue 3, 390-396

Abstract: The reduced s–d model with antiferromagnetically coupled impurity spins is tested on specific heat measurements of (La1−xCex)Al2 for varying Ce concentration c and magnetic field B. The s–d exchange coupling constant J, conduction bandwidth D and coupling between impurities γ2 are adjusted to obtain the best fit of theoretical normalized specific heat ci∗(T,B) with experiment. The agreement between ERs-dM and experimental data, although limited by the different type of magnetic ordering observed in (La1−xCex)Al2 and predicted by the ERs-dM, appears to be satisfactory.

Keywords: Kondo system; Reduced s–d exchange; Specific heat (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:256:y:1998:i:3:p:390-396

DOI: 10.1016/S0378-4371(98)00105-8

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