Unconventional Non-Fermi Liquid Properties of Two-Channel Anderson Impurities System
Unconventional Non-Fermi Liquid Properties of Two-Channel Anderson Impurities System
复制标题
双通道安德森杂质系统的非常规非费米液体性质
DOI：
10.1088/2399-6528/ac42dd
复制
发表时间：
2022
期刊：
影响因子：
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通讯作者：
A. Tsuruta and K. Miyake
中科院分区：
文献类型：
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作者：
Sakakibara Toshiro;Nakamura Shota;Kittaka Shunichiro;Kakihana Masashi;Hedo Masato;Nakama Takao;Onuki Yoshichika;A. Tsuruta and K. Miyake
发展了一种处理Pr基双通道Anderson杂质系统中非常规非费米液体温度与物理量(如电阻率)关系的理论。结果表明，除了Pr离子浓度极低的情况下很难通过受控实验实现外，它们与纯晶格系统的温度关系基本相同。这一结果与Yamane等(2018年)Phys中报道的稀释Pr-1-2-20系统Y1−xPrxIr2Z20(x=0.024，0.044，0.085和0.44)中最近的观察结果是一致的。莱特牧师。在Ce基重费米子系统La1−x Ce x Cu6中观察到，在中等杂质浓度附近，局域费米液体和重费米液体的行为发生交叉。
A theory for treating the unconventional non-Fermi liquid temperature dependence of physical quantities, such as the resistivity, in the Pr-based two-channel Anderson impurities system is developed. It is shown that their temperature dependences are essentially the same as those in the pure lattice system except for the case of extremely low concentration of Pr ions that is difficult to realize by the controlled experiments. This result is consistent with recent observations in diluted Pr-1-2-20 system Y 1− x Pr x Ir 2 Zn 20 (x= 0.024, 0.044, 0.085, and 0.44) reported in Yamane et al (2018) Phys. Rev. Lett. 121, 077206, and is quite different from that in the case of single-channel Anderson impurities system in which the crossover between behaviors of the local Fermi liquid and heavy Fermi liquid occurs at around moderate concentration of impurities as observed in Ce-based heavy fermion system La 1− x Ce x Cu 6.