BIPOLARON KINETICS OF HIGH-T(C) METAL-OXIDES - HALL-EFFECT, RESISTIVITY AND SPIN GAP

Authors
ALEXANDROV AS BRATKOVSKY AM MOTT NF
Citation
As. Alexandrov et al., BIPOLARON KINETICS OF HIGH-T(C) METAL-OXIDES - HALL-EFFECT, RESISTIVITY AND SPIN GAP, Superconductor science and technology, 6(10), 1993, pp. 755-760
Citations number
42
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Superconductor science and technology → ACNP
ISSN journal
09532048
Volume
6
Issue
10
Year of publication
1993
Pages
755 - 760
Database
ISI
SICI code
0953-2048(1993)6:10<755:BKOHM->2.0.ZU;2-X
Abstract
A normal-state kinetic theory of copper-based oxides, which is an exte nsion of BCS theory and Anderson localization to the strong-coupling l imit lambda > 1, is proposed. In this limit carriers are charged 2e bo sons (small bipolarons) below and above T(c). Temperature and doping d ependencies of resistivity and Hall effect in copper oxides are explai ned by taking into account the localization of charged bosons in a ran dom potential. Links with the 'spin' gap, high T(c) and with some othe r unusual properties are discussed.