ThAsSe diamagnet: Evidence for a Kondo effect derived from structural two-level systems
ThAsSe diamagnet: Evidence for a Kondo effect derived from structural two-level systems
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ThAsSe diamagnet：来自结构两能级系统的近藤效应的证据
DOI：
10.1103/physrevb.68.144411
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发表时间：
2003
影响因子：
3.7
通讯作者：
M. Maple
中科院分区：
文献类型：
--
作者：
T. Cichorek;H. Aoki;J. Custers;P. Gegenwart;F. Steglich;Z. Henkie;E. Bauer;M. Maple
我们报告了对结构无序的强磁体 ThAsSe 中异常散射机制的研究。在20 K以下，其电阻显示出超过十年的温度对数修正，不受强磁场（B≤17 T）和高静水压力（p≤1.88 GPa）的影响。 ThAsSe 单晶中的动态无序通过例如在 T≤1.7 K 的比热中非电子起源的拟线性 T 项来反映。电阻的 In T 依赖性被解释为由于传导电子与可移动结构缺陷的相互作用所致。
We report a study of an anomalous scattering mechanism in the structurally disordered diamagnet ThAsSe. Below 20 K, its electrical resistance displays a logarithmic correction over one decade in temperature, which is affected by neither strong magnetic fields (B≤17 T) nor high hydrostatic pressures (p≤1.88 GPa). Dynamic disorder in the ThAsSe single crystals is reflected by, e.g., a quasilinear-in-T term of nonelectronic origin in the specific heat at T≤1.7 K. The In T dependence of the resistance is interpreted as being due to the interaction of the conduction electrons with movable structural defects.