我们研究了一个基于单层氢化锑的异质结构材料的热电性质,该材料有着新颖的量子自旋-量子反常霍尔效应.我们计算了这种新的拓扑相材料的锯齿形结构纳米带的电导、热导、塞贝克系数以及热电效益指数.通过我们的研究,表明该材料在低温下有着较好的热电性能.此外,我们通过改变样品最外层原子的交换场的方式来调控样品的边缘态,并计算样品热电性质的变化.最后,我们发现随着纳米带宽度的增加,系统的热电性能也会增加.
The thermoelectric properties of the decorated Sb monolayer heterostructures electrical conductance a novel quantum spin-quantum anomalous Hall phase are investigated.We study the behaviors of electrical conductance,thermal conductance,Seebeck coefficient,and thermoelectric figure of merit ZT of this new topological phase in a zigzag nanoribbon.We show the system has higher thermoelectric performance at lower temperature.Moreover,we demonstrate the thermoelectric properties of thesystem can be manipulated through tuning the exchange fields of the out most sublattice of the sample.Finally,by increasing the nanoribbon width,we find the thermoelectric performance of the system become better.
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