MAGNETO-SEEBECK AND NERNST EFFECTS IN CADMIUM ARSENIDE

被引:26
作者
ARMITAGE, D
GOLDSMID, HJ
机构
[1] School of Physics, Bath University of Technology, Bath
来源
JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS | 1969年 / 2卷 / 12期
关键词
D O I
10.1088/0022-3719/2/12/324
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The Seebeck and Nernst coefficients of several samples of Cd 3As2 have been measured, in transverse magnetic fields of up to 2 tesla, between liquid nitrogen and room temperature. The saturation high-field Seebeck coefficient has been determined by extrapolation of the results of these measurements, taking into account inelastic scattering of the electrons. From the interdependence of the high-field Seebeck and Hall coefficients, it appears that the conduction band is linear, i.e. E is proportional to k. Thence, from the difference between the high- and low-field Seebeck coefficients, the scattering law has been determined. If the relaxation time τ is supposed to be proportional to k2λ-1dE/dk a value of λ equal to 0·7 is indicated.
引用
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页码:2389 / &
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