Crystal Field Effects on Thermal and Magnetic Properties of Er3Co

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Copyright (c) 1995 The Japan Society of Applied Physics
, , Citation Akiko Takahashi Saito et al 1995 Jpn. J. Appl. Phys. 34 L171 DOI 10.1143/JJAP.34.L171

1347-4065/34/2A/L171

Abstract

The specific heat and magnetic susceptibility have been measured for Er3Co. The magnetic susceptibility obeys the Curie-Weiss law in the temperature range of 100-300 K with the effective moment µ eff=9.52µ B. A large magnetic specific heat above the Curie temperature of 13 K was found, which is interpreted in terms of the point-charge model. It is revealed that the crystal field and exchange field are of the same order of magnitude and that the electronic thermal excitations contribute to the magnetic specific heat, resulting in a broad Schottky-type contribution. Moreover, magnetocrystalline anisotropy gives rise to the noncollinear spin structure.

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10.1143/JJAP.34.L171