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Comparison of the electronic structure of the high-temperature superconductors Bi,Sr,CuO, and Tl,Ba,CuO,

Strange, Paul, Gunn, J. M. F. (1989) Comparison of the electronic structure of the high-temperature superconductors Bi,Sr,CuO, and Tl,Ba,CuO,. Journal of Physics: Condensed Matter, 1 . pp. 6843-6852. ISSN 0953-8984. (doi:10.1088/0953-8984/1/38/009) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided)

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Abstract

We have calculated the electronic structure of the high-temperature super- conductors Bi,Sr2Cu06and TI,Ba,CuO,. We find that the T1-0 layers are mainly covalently bonded,whereastheBi-0 layersalsohaveanioniccomponent.Thesematerialshavevery similar crystal structures, but radically different superconducting properties, T , = 12 K and 90 K respectively. We focus on how ‘metallic’ the Bi/T1 layers are and the degree to which the CuO, layers are doped by charge transfer as possible reasons for this difference, arguing that the latter is dominant.

Item Type: Article
DOI/Identification number: 10.1088/0953-8984/1/38/009
Uncontrolled keywords: Physics of Quantum Materials
Subjects: Q Science > QC Physics > QC176 Solid state physics
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Paul Strange
Date Deposited: 23 Jul 2015 13:35 UTC
Last Modified: 17 Jul 2019 10:55 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49679 (The current URI for this page, for reference purposes)
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