Evolution of the superconductivity during the pressure-induced oxygen ordering process in oxygen-deficient REBa2Cu3O6+x (RE=Y,Nd,La)

Citation
Im. Fita et al., Evolution of the superconductivity during the pressure-induced oxygen ordering process in oxygen-deficient REBa2Cu3O6+x (RE=Y,Nd,La), J L TEMP PH, 117(3-4), 1999, pp. 909-913
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
117
Issue
3-4
Year of publication
1999
Pages
909 - 913
Database
ISI
SICI code
0022-2291(199911)117:3-4<909:EOTSDT>2.0.ZU;2-P
Abstract
The pressure controlled oxygen reordering processes in REBa2Cu3O6+x, (RE=Y, Nd,La) causing the continous charge transfer between the CuOx and CuO2 plan es were investigated. The charge transfer results in the time evolution of superconductivity. A strong acceleration of ordering and disordering proces ses was found when the RE-ion size increases from Y to La. Pressure induced semiconductor-superconductor transition in LaBa2Cu3O6+x resulted from the oxygen ordering is reported for the first time.