Multiband effects in thermoelectric and electrical transport properties of kagome superconductors AV3Sb5 (A = K, Rb, Cs)

Multiband effects in thermoelectric and electrical transport properties of kagome superconductors AV3Sb5 (A = K, Rb, Cs)
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Kagome 超导体 AV3Sb5 (A = K、Rb、Cs) 热电和电输运特性的多带效应

DOI:
10.1088/1367-2630/ac8e24
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发表时间:
2022-08
影响因子:
3.3
通讯作者:
Mingquan He
Mingquan He
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Xinrun Mi;Wei Xia;Long Zhang;Yuhan Gan;Kunya Yang;Aifeng Wang;Yisheng Chai;Yanfeng Guo;Xiaoyuan Zhou;Mingquan He

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本文研究了多带电子结构对正常态可果美超导体AV_3Sb_5(A = K,Rb,Cs)热电和电输运性质的影响。在所有三个成员中,多频带的性质表现为在塞贝克和霍尔电阻率的温度依赖性的符号变化,连同次线性响应的等温能斯特和霍尔效应的外部磁场中的电荷有序状态。此外,双极输运效应普遍存在于所有三个系统中,产生了相当大的能斯特信号。最后,讨论了霍尔效应的温度依赖性的符号反转的可能起源。
We studied the effects of multiband electronic structure on the thermoelectric and electrical transport properties in the normal state of kagome superconductors AV3Sb5 (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.
DOI: 10.2307/3605761
发表时间: 1933
期刊: --
影响因子: --
作者:
M. Born;N. Mott;H. Jones
通讯作者: M. Born;N. Mott;H. Jones
DOI: 10.1063/1.3128866
发表时间: 1974-09
期刊: Physics Today
影响因子: 3.5
作者:
R. Barnard;V. Cannella
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DOI: 10.1038/139348a0
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DOI: 10.1016/s0081-1947(08)60237-4
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期刊: Journal of Physics C: Solid State Physics
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