Specific heat of Nd1-xCaxB6 single crystals

Article

关键词: RARE-EARTH HEXABORIDES;    ANTIFERROMAGNETIC NDB6;    FERMI SURFACES;    FIELD;    TEMPERATURES;    TRANSITION;    VANALPHEN;    CAPACITY;    CEB6;    PRB6;   

DOI  :  10.1103/PhysRevB.83.113108

来源: SCIE

【 摘 要 】

We measured the heat capacity on random alloys of Nd1-xCaxB6 (x < 0.4) in the 0.4 to 300 K temperature range. We calculated the lattice contribution to the specific heat, arising from the Debye-type phonons of the boron framework and Einstein-type oscillators of the cation sublattice. Subtracting lattice and Schottky-type contributions from the measured heat capacity, we find that the electronic portion, linear in temperature, decreases sharply upon doping with Ca.

【 授权许可】

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