A. N. Perevalova, S. V. Naumov, B. M. Fominykh, E. B. Marchenkova, S. H. Liang, V. V. Marchenkov
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引用次数: 0
摘要
摘要 研究了拓扑半金属 WTe2 和 MoTe2 单晶体在 2 至 100 K 的温度范围和高达 9 T 的磁场中的霍尔效应。除了已知的电子和空穴电荷载流子补偿/分解机制之外，WTe2 和 MoTe2 单晶的霍尔电阻率对磁场的非线性依赖还与表面电荷载流子的散射有关。
The Hall Effect in Single Crystals of Topological Semimetals WTe2 and MoTe2
Abstract
The Hall effect in single crystals of topological semimetals WTe2 and MoTe2 is studied in the temperature range from 2 to 100 K and in magnetic fields up to 9 T. It is established that the Hall resistivity of WTe2 shows a nonlinear dependence on the magnetic field at temperatures below 100 K. At the same time, the Hall resistivity of MoTe2 depends linearly on the magnetic field in the temperature range from 2 to 25 K and a nonlinear contribution appears at 50 K. Along with the known mechanism of compensation/decompensation of electron and hole charge carriers, the nonlinear dependence of the Hall resistivity of WTe2 and MoTe2 single crystals on the magnetic field is associated with the scattering of charge carriers on the surface.
期刊介绍：
The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.
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