Isotropic magnetoelastic properties in thulium intermetallic compounds
Isotropic magnetoelastic properties in thulium intermetallic compounds
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铥金属间化合物的各向同性磁弹性特性
DOI：
10.1103/physrevb.29.1425
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
S. Williamson
中科院分区：
文献类型：
--
作者：
P. Morin;S. Williamson
测量TmZn和TmCu单晶体的体积模量的温度依赖性和TmZn，TmCu，和TmCd的热膨胀在顺磁相进行调查的重要性，单离子各向同性磁弹性耦合的稀土元素。通过与稀土化合物LuZn和YCd的行为比较，获得了磁性贡献。与理论曲线的比较表明，单离子磁弹性项的体积模量和热膨胀是不够的，占TmCu和TmCd的磁贡献，TmZn的只有部分成功。高阶多极对相互作用的重要贡献的可能性进行了讨论。
Measurements of the temperature dependence of the bulk modulus of single crystals of TmZn and TmCu and the thermal expansion of TmZn, TmCu, and TmCd were carried out in the paramagnetic phase to investigate the importance of single-ion isotropic magnetoelastic coupling of the rare-earth elements. The magnetic contributions were obtained by comparison with the behavior of the nonmagnetic compounds LuZn and YCd. Comparisons with theoretical curves show that the single-ion magnetoelastic terms for the bulk modulus and thermal expansion are insufficient to account for the magnetic contribution in TmCu and TmCd and are only partially successful for TmZn. The possibilities of important contributions from high-order multipolar pair interactions are discussed.