Fluctuation conductivity of hafnium doped YBa2Cu3O7-δ ceramic

Authors

  • S. V. Savich Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
  • A. V. Samoilov Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
  • A. L. Samsonik Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
  • V. N. Sukhov Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
  • K. V. Tiutierieva Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine
  • R. V. Vovk Kharkiv National University Svobody Sq. 4, 61022 Kharkiv, Ukraine

Keywords:

YBa2Cu3O7-δ ceramics, doping, fluctuation conductivity, the coherence length, 3D-2D crossover

Abstract

The conductivity of Hf doped YBa2Cu3O7-δ ceramics was studied in the thesis. It was shown that the introduction of Hf additive leads to the increase of the amount of scattering effective centers of normal carriers. Excessive conductivity of the studied samples near Tc is satisfactorily described by a theoretical model of Aslamazov-Larkin. At the same time Hf additive leads to a significant increase in the absolute value of xс(0) and the shift of 3D-2D crossover point with regard to the temperature.

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Published

2015-07-01

Issue

Vol. 1158 No. 22 (2015)

Section

Articles

How to Cite

Fluctuation conductivity of hafnium doped YBa2Cu3O7-δ ceramic. (2015). Journal of V. N. Karazin Kharkiv National University. Series Physics, 1158(22), 45-47. https://periodicals.karazin.ua/physics/article/view/7800

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