Quenching and room-temperature annealing effects on the conductivity of underdoped HoBa2Cu3O7−δ-Reference-Cited by-同舟云学术

Quenching and room-temperature annealing effects on the conductivity of underdoped HoBa2Cu3O7−δ

Published:2018-01-10 Issue:01 Volume:32 Page:1750367
ISSN:0217-9849
Container-title:Modern Physics Letters B
language:en
Short-container-title:Mod. Phys. Lett. B

Author:

Khadzhai G. Ya.¹,Vovk R. V.¹,Vovk N. R.¹,Boiko Yu. I.¹,Kamchatnaya S. N.¹,Pinto Simoes V. M.²,Dobrovolskiy O. V.¹³^ORCID

Affiliation:

1. Physics Department, V. Karazin Kharkiv National University, 61077 Kharkiv, Ukraine

2. ISEC Lisboa — Instituto Superior de Educacao a Ciencias, 1750-142 Lisboa, Portugal

3. Physikalisches Institut, Goethe University, 60438 Frankfurt am Main, Germany

Abstract

The effects of quenching from 600[Formula: see text]C and subsequent room-temperature annealing on the basal-plane electrical resistivity of underdoped HoBa2Cu3O[Formula: see text] single crystals are investigated. Regions with different superconducting transition temperatures, [Formula: see text], have been revealed in the sample after quenching and attributed to a non-uniform distribution of the labile oxygen in the sample volume. Room-temperature annealing has been revealed to lead to an increase of [Formula: see text] of all regions and a decrease of their number, attributed to the coalescence of clusters of oxygen vacancies. The temperature dependence of the resistance in the normal state is characterized by a decrease of the residual resistivity and the phonon scattering coefficient.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217984917503675

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4. Specific temperature dependence of pseudogap in YBa2Cu3O7−δ nanolayers

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