Absence of lattice coherence effects in Ce0.6La0.4Pb3: A magnetic field study
Pietri, R. · Rotundu, C. R. · Andraka, B. · Daniels, B. C. · Ingersent, K.
Original · EN
The specific heat of polycrystalline Ce0.6La0.4Pb3 has been measured in magnetic fields ranging from 0 to 14 T. After subtraction of a lattice contribution, the specific heat between 1 K and 10 K is well described by the S=1/2 single-impurity Kondo model with just one adjustable parameter: the zero-field Kondo temperature. In particular, the variation in the temperature and the height of the peak in C vs T is captured with good accuracy. This fit suggests that lattice coherence effects play no significant role in the magnetic-field response of this concentrated Kondo system.
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