Anisotropy, pinning, and the mixed-state Hall effect

T. W. Clinton, A. W. Smith, Qi Li, J. L. Peng, R. L. Greene, C. J. Lobb, M. Eddy, C. C. Tsuei

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Abstract

We have studied the mixed-state Hall effect of the high-Tc superconductors Nd1.85Ce0.15CuO4 (NCCO), Tl2Ba2CaCu2O8 (Tl2212), and YBa2Cu3O7 (YBCO), and the isotropic low-Tc superconductor amorphous Mo3Si (a-Mo3Si). We demonstrate the pinning independence of the Hall conductivity xy and its consequent scaling in terms of the anisotropy of NCCO, Tl2212, and YBCO. In YBCO and a-Mo3Si the Hall angle is enhanced as we reduce the effective pinning, yet xy is unchanged. For all of these materials there is a vortex contribution xy1/H at low fields while at high fields xyH. These results provide evidence that beneath the effects of pinning and anisotropy a relatively simple and universal behavior of the mixed-state Hall effect exists.

Original languageEnglish (US)
Pages (from-to)R7046-R7049
JournalPhysical Review B
Volume52
Issue number10
DOIs
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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    Clinton, T. W., Smith, A. W., Li, Q., Peng, J. L., Greene, R. L., Lobb, C. J., Eddy, M., & Tsuei, C. C. (1995). Anisotropy, pinning, and the mixed-state Hall effect. Physical Review B, 52(10), R7046-R7049. https://doi.org/10.1103/PhysRevB.52.R7046