Intrinsic Pinning and Excess Conductivity of Monodomain YBa2Cu3O7-δ Single Crystals

  • Zarif Nazyrov V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
  • Nina Zavgorodnya V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
  • Ruslan Vovk V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
  • D. Lotnik V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
Keywords: excess conductivity, YBa2Cu3O7-δ single crystals, oxygen deficiency, pinning, 2D-3D crossover

Abstract

In present work the influence of the disorientation angle between the direction of constant field up to 15 kOe and the ab-plane a º Ð(H,ab) to the temperature dependence of the excess conductivity in the temperature interval of the transition to the superconducting state in untwinned YBa2Cu3O7-d single crystals with a small oxygen hypostoichiometry are investigated. Causes of low-temperature "tails" (parakogerentnyh transitions) in the resistive transitions in superconducting state are analyzed in the framework of the implementation of the various regimes of the phase state of vortex matter.

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References

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Published
2012-02-24
Cited
How to Cite
Nazyrov, Z., Zavgorodnya, N., Vovk, R., & Lotnik, D. (2012). Intrinsic Pinning and Excess Conductivity of Monodomain YBa2Cu3O7-δ Single Crystals. East European Journal of Physics, (991(1), 65-68. Retrieved from https://periodicals.karazin.ua/eejp/article/view/13864