Magnon heat capacity, magnon magnetization and magnetic entropy of the weak ferromagnet UPt
Magnon heat capacity, magnon magnetization and magnetic entropy of the weak ferromagnet UPt
复制标题
弱铁磁体UPt的磁振子热容、磁振子磁化强度和磁熵
DOI：
10.1016/0304-8853(76)90096-2
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发表时间：
1976
影响因子：
2.7
通讯作者：
J. Huber
中科院分区：
文献类型：
--
作者：
C. Luengo;M. Maple;J. Huber
AT 3 2对弱铁磁化合物UPt的热容和饱和磁化强度的贡献揭示了在居里温度低于30 K时铁磁态自旋波的存在。从UPt和同结构双金属化合物ThPt的量热数据中提取的有序熵远小于从pss ″ e5f3（U3+）或5f2（U4+）离子组态中预期的简并熵，但远大于在巡游铁磁体中观察到的值.
AT 3 2 contribution to both the heat capacity and the saturation magnetization of the weakly ferromagnetic compound UPt reveals the existence of spin waves in the ferromagnetic state below the Curie temperature of 30 K. The entropy of ordering, extracted from calorimetric data on UPt and the isostructural nonmagnetic compound ThPt, is much smaller than the degeneracy entropy expected from the p ss ″e 5f 3 (U 3+) or 5f 2 (U 4+) ionic configuration, but much larger that the value observed in itinerant ferromagnets.