Iranian Journal of Physics Research (Sep 2010)

Hall effect in CNT doped YBCO high temperature superconductor

  • S Dadras,
  • N Manivannan2,
  • KH Kim,
  • V Daadmehr

Journal volume & issue
Vol. 10, no. 2
pp. 83 – 86

Abstract

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In order to study Hall effect in pure and CNT doped YBCO polycrystalline samples, we have measured longitudinal and transverse voltages at the different magnetic field (0-9T) in the vortex state. We found a sign reversal for pure sample near 3T and double sign reversal of the Hall coefficient for CNT doped sample near 3 and 5T. It can be deduced that CNT doping caused strong flux pinning and Hall double sign reversal in this compound.

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