IODOMETRIC TITRATION OF COPPER-OXIDE SUPERCONDUCTORS AND TOKURAS RULE

Authors
BLACKSTEAD HA DOW JD PULLING DB
Citation
Ha. Blackstead et al., IODOMETRIC TITRATION OF COPPER-OXIDE SUPERCONDUCTORS AND TOKURAS RULE, Physica. C, Superconductivity, 265(1-2), 1996, pp. 143-149
Citations number
32
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
265
Issue
1-2
Year of publication
1996
Pages
143 - 149
Database
ISI
SICI code
0921-4534(1996)265:1-2<143:ITOCSA>2.0.ZU;2-4
Abstract
Iodometric titration measurements, which are often interpreted as obta ining the excess valence on Cu atoms in Y(LayBa1-y)(2)Cu3Ox, are reint erpreted as determining concentrations of ''neutral'' or hypocharged o xygen instead. Tokura's Rule, an empirical relationship between the cr itical oxygen content x(c) and the critical La content y(c) at the ons et of superconductivity, is derived on the basis of a hypocharged-oxyg en model.