VALENCE STATES OF ATOMS AND LOCALIZATION OF CONDUCTIVITY ELECTRONS INPRBA2CU3O6+X

Authors
ROMANENKO AI ZAKHARCHUK NF NAUMOV NG FEDOROV VE PAEK UH
Citation
Ai. Romanenko et al., VALENCE STATES OF ATOMS AND LOCALIZATION OF CONDUCTIVITY ELECTRONS INPRBA2CU3O6+X, Physica. C, Superconductivity, 282, 1997, pp. 1137-1138
Citations number
3
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
3
Pages
1137 - 1138
Database
ISI
SICI code
0921-4534(1997)282:<1137:VSOAAL>2.0.ZU;2-C
Abstract
Praseodymium in three valent state only (Pr3+) was discovered in PrBa2 Cu3O6+x with the oxygen content range 0.4 less than or equal to x less than or equal to 0.6. Out of this range Pr4+ state presents. It was s hown that in PrBa2Cu3O6+x (0.4 less than or equal to x less than or eq ual to 0.6) localization conductivity sigma(T)1/rho(T) with variable j ump length is connected with oxygen disorder only. Out of this range t he localization is much stronger, and this increase is due to Pr4+ pos ition disorder.