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Possible electronic properties in high-T-c superconducting cuprates from cluster calculations

Itai Panas (Institutionen för oorganisk miljökemi)
CHEMICAL PHYSICS LETTERS (0009-2614 ). Vol. 259 (1996), 3-4, p. 241-246.
[Artikel, refereegranskad vetenskaplig]

Electronic structure calculations have been performed on a Ca2Cu4O4 cluster to model possible local properties of relevance to superconductivity in cuprates. Explicit account of near-degeneracies suggests the pairing potential mixes anisotropic s and d symmetries as a result of going beyond the independent particle description. Pairing results from the screening of cation repulsion across the CuO2 plane. Pair-breaking energies in the range 0–60 meV are computed dependent on the cation to plane distance. A possible mechanism for superconductivity emerges.

Denna post skapades 2010-09-16.
CPL Pubid: 126454


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