Hall Effect in Type II Superconductors
The resistive behavior of type II superconductors is explained in the microscopic theories of Caroli and Maki,1 Thompson,2 and Takayama and Ebisawa,3 while observed transverse voltages are not. According to experiments4–6 the curves of the Hall angle θ vs. applied magnetic field H show sudden increases as H is lowered through H c 2 in dirty samples, while they change only slightly in pure samples. In this paper an explanation of this behavior of θ is proposed. Summaries of the microscopic calculations of θ due to the flux flow near H c 2 are given in both the dirty and the pure limits in the framework of an effective mass approximation.
KeywordsApplied Magnetic Field Conductivity Tensor Pairing Type Flux Flow Effective Mass Approximation
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