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Flux motion in anisotropic type-II superconductors nearH c 2 with arbitrary vortex orientation

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Abstract

Flux motion in anisotropic type-II superconductors near Hc 2 is studied in the framework of the time-dependent Ginzburg-Landau (TDGL) theory for the case that the average flux densityB is oriented in an arbitrary direction relative to the principal axes of the sample. The linearized TDGL equation for a uniformly translating order parameter is solved and expressions for all elements of the flux-flow resistivity tensor ϱij (including the off-diagonal Hall elements) are obtained. The diagonal elements ϱii show the angular scaling property that ϱii(B) = ϱii(B/Hc 2(θ, ø)), whereas the Hall elements ϱij (i ≠ j) have additional angular dependences that are not contained in Hc2. For the case that the normal state Hall elements ϱ (n)ij ∝B k with i ≠ j ≠ k, the ratios ϱij/ϱ (n)ij are functions of B/Hc2 (θ, φ) only.

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Authors and Affiliations

  1. Texas Center for Superconductivity, University of Houston, 77204, Houston, Texas

    Zhidong Hao

  2. Department of Physics, Texas A & M University, 77843, College Station, Texas

    Chia -Ren Hu

Authors
  1. Zhidong Hao
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  2. Chia -Ren Hu
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Hao, Z., Hu, C.R. Flux motion in anisotropic type-II superconductors nearH c 2 with arbitrary vortex orientation. J Low Temp Phys 104, 265–274 (1996). https://doi.org/10.1007/BF00754097

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  • DOI: https://doi.org/10.1007/BF00754097

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