DocumentCode
49284
Title
Effect of Long Aging on the Resistivity Properties of Optimally Doped 
Single Crystals
Author
Vovk, Ruslan V. ; Maievskyi, Eduard
Author_Institution
Sch. of Phys., V.N. Karazin Kharkiv Nat. Univ., Kharkiv, Ukraine
Volume
25
Issue
3
fYear
2015
fDate
Jun-15
Firstpage
1
Lastpage
4
Abstract
We investigate conducting properties in the basal abplane before and after a long time exposure in air atmosphere of optimally oxygen doped YBa2Cu3O7-δ single crystals. Prolonged exposure leads to an increase of the effective scattering centers of the normal carriers. The excess conductivity in a wide temperature range has exponential temperature dependence and near the critical temperature is well described within the AslamazovLarkin theoretical model. The prolonged exposure increases to a great extent the temperature range of the implementation of the pseudogap state, narrowing the linear section of the temperature dependence of the resistivity in the ab-plane, ρab(T).
Keywords
ageing; barium compounds; carrier density; electrical conductivity; electrical resistivity; high-temperature superconductors; superconducting energy gap; superconducting transition temperature; yttrium compounds; Aslamazov-Larkin theoretical model; YBCO; air atmosphere; conducting properties; critical temperature; effective scattering centers; exponential temperature dependence; long aging effect; long time exposure; normal carriers; optimally doped single crystals; pseudogap state; resistivity; resistivity properties; superconductors; Aging; Conductivity; Crystals; Fluctuations; Superconductivity; Temperature; Temperature dependence; Resistivity; resistivity; superconductors;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2014.2369745
Filename
6963319
Link To Document