论文标题
Kagome超导体的热电和电气传输属性的多型效果
Multiband effects in thermoelectric and electrical transport properties of kagome superconductors $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs)
论文作者
论文摘要
我们研究了多台电子结构对kagome超导体正常状态的热电和电气传输属性的影响，在所有三个成员中，多频道的性质都由塞贝克和霍尔电阻率的温度依赖性变化以及等温nernst和hall效应对外部磁场的均匀响应以及电荷有序状态下的外部磁场的效应所表现出来。此外，在所有三个系统中，双极传输效应都无处不在，引起了相当大的Nernst信号。最后，讨论了大厅效应的温度依赖性符号逆转的可能起源。
We studied the effects of multiband electronic structure on the thermoelectric and electrical transport properties in the normal state of kagome superconductors $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs). In all three members, the multiband nature is manifested by sign changes in the temperature dependence of the Seebeck and Hall resistivity, together with sublinear response of the isothermal Nernst and Hall effects to external magnetic fields in the charge ordered state. Moreover, ambipolar transport effects appear ubiquitously in all three systems, giving rise to sizable Nernst signal. Finally, possible origins of the sign reversal in the temperature dependence of the Hall effect are discussed.
