Coherent {ital ab} and {ital c} Transport Theory of High-{ital T}{sub {ital c}} Cuprates
Journal Article
·
· Physical Review Letters
- Department of Physics, Loughborough University, Loughborough LE11 3TU (United Kingdom)
We propose a microscopic theory of the normal state transport in copper oxides based on the bipolaron theory which describes qualitatively the temperature ({ital T}) and doping ({ital x}) dependence of the in-plane {rho}{sub {ital ab}} and out-of-plane {rho}{sub {ital c}} resistivity and the spin susceptibility {chi}{sub {ital s}} in underdoped, optimally doped, and not very heavily overdoped La{sub 2{minus}{ital x}}Sr{sub {ital x}}CuO{sub 4} for the temperature range from {ital T}{sub {ital c}} up to 600K. A free parameter relation between the anisotropy and the spin susceptibility is derived, {rho}{sub {ital c}}({ital T},{ital x})/{rho}{sub {ital ab}}({ital T},{ital x}){approximately}{ital x}/{ital T}{sup 1/2}{chi}{sub {ital s}}({ital T},{ital x}), which agrees quantitatively with the experiment. The normal state gap is explained and its doping and temperature dependence clarified. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 399881
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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