publication . Article . 2020

Electrical conductivity of YBa2Cu3O7-δ single crystals under conditions of anionic ordering in Cu(1)O1-δ layers

N. A. Kalanda;
Open Access
  • Published: 30 Jun 2020 Journal: Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering, volume 23, pages 71-77 (issn: 1609-3577, eissn: 2413-6387, Copyright policy)
  • Publisher: National University of Science and Technology MISiS
Abstract
The influence of thermocycling annealing processes on the oxygen ordering degree (order parameter) in YBa2Cu3O7-δ single crystals has been studied. It has been shown that an increase in the critical onset temperature of the transition to the superconducting state during thermocycling annealing procedures is consistent with the decrease of the σс/σаb parameter. This fact indicates a redistribution of the electronic density between the structurally inhomogeneous Cu(2)O2 and Cu(1)O1-δ planes, due to the formation of oxygen long-range order in the O(4)–Cu(1)–O(4) linear groups along the (b) crystal structure axis of the unit cell, and elimination of oxygen defects i...
Subjects
free text keywords: high-temperature superconductivity, YBa2Cu3O7-δ single crystals, oxygen non-stoichiometry, electrical conductivity, order parameter, high-temperature superconductivity YBa2Cu3O7-δ single crystals oxygen non-stoichiometry electrical conductivity order parameter, Electrical resistivity and conductivity, Analytical chemistry, Materials science, Yba2cu3o7 δ, Crystal, lcsh:Electronics, lcsh:TK7800-8360
Funded by
EC| SPINMULTIFILM
Project
SPINMULTIFILM
Physical principles of the creation of novel SPINtronic materials on the base of MULTIlayered metal-oxide FILMs for magnetic sensors and MRAM
  • Funder: European Commission (EC)
  • Project Code: 778308
  • Funding stream: H2020 | MSCA-RISE
Validated by funder
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