Low-Temperature Specific Heat of CeCu2Si2 and CeAl3: Coherence Effects in Kondo 
Lattice Systems

Bredl, C. D.; Horn, S.; Steglich, F.; Lüthi, B; Martin, R. M.

doi:10.1103/PhysRevLett.52.1982

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Low-Temperature Specific Heat of CeCu₂Si₂ and CeAl₃: Coherence Effects in Kondo Lattice Systems

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Bredl, C. D., Horn, S., Steglich, F., Lüthi, B., & Martin, R. M. (1984). Low-Temperature Specific Heat of CeCu₂Si₂ and CeAl₃: Coherence Effects in Kondo Lattice Systems. Physical Review Letters, 52(22), 1982-1985. doi:10.1103/PhysRevLett.52.1982.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-C2B5-B

Abstract

Measurements of the specific heat as a function of temperature at varying magnetic fields for the Kondo lattice systems CeCu2Si2 and CeAl3 reveal that, on an energy scale ∼0.5 K≪TK, there is structure which is due to the periodicity and is qualitatively changed by disorder in the alloys Ce0.9Y0.1Cu2Si2, Ce0.8Y0.2Cu2Si2, and Ce0.8La0.2Cu2Si2. The results support the Fermi-liquid theory of Kondo lattices.