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Your search keyword '"Kamchatnaya, S.N."' showing total 15 results
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15 results on '"Kamchatnaya, S.N."'

15. Room-temperature annealing effects on the basal-plane resistivity of optimally doped YBa2Cu3O[formula omitted] single crystals.

Author

Khadzhai, G.Ya., Vovk, R.V., Vovk, N.R., Kamchatnaya, S.N., and Dobrovolskiy, O.V.

Subjects
*DOPING agents (Chemistry), *SUPERCONDUCTORS, *ANNEALING of metals, *SINGLE crystals, *FLUX flow
Abstract

We reveal that the temperature dependence of the basal-plane normal-state electrical resistance of optimally doped YBa 2 Cu 3 O 7 − δ single crystals can be with great accuracy approximated within the framework of the model of s-d electron-phonon scattering. This requires taking into account the fluctuation conductivity whose contribution exponentially increases with decreasing temperature and decreases with an increase of oxygen deficiency. Room-temperature annealing improves the sample and, thus, increases the superconducting transition temperature. The temperature of the 2D-3D crossover decreases during annealing. [ABSTRACT FROM AUTHOR]

Published
2018
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