Electronic structure of Bi2Sr2CaCu2O8 doped by sulphur in the cluster approximation

Kalinkin, A.N.; Skorikov, V.M.; Soldatov, A.A.; Dobretsov, V.Yu.

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Electronic structure of Bi₂Sr₂CaCu₂O₈ doped by sulphur in the cluster approximation

Kalinkin, A.N.; Skorikov, V.M.; Soldatov, A.A.; Dobretsov, V.Yu.1991

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AbstractAbstract

[en] The electronic structure of SrBi₄Cu₄O₉⁴⁺, SrBi₄Cu₄O₅S₄⁴⁺ clusters in the high-Tc superconductor Bi₂Sr₂CaCu₂O₈ doped by sulphur is calculated using the relativistic self-consistent X_α-SW method. The effective charges of atoms and electronic densities of states are obtained. The substitution O→S in Cu-O sheets is shown to result in hole doping and the improvement of hole hopping that may increase Tc. (orig.)

Primary Subject

MATERIALS SCIENCE (B2340)

Record Type

Journal Article

Journal

Physica Status Solidi B; ISSN 0370-1972;

; CODEN PSSBB; v. 166(1); p. 185-190

Country of publication

Germany

Descriptors (DEI)

BISMUTH OXIDES, CALCIUM OXIDES, CLUSTER MODEL, COPPER OXIDES, DOPED MATERIALS, ELECTRIC CONDUCTIVITY, ELECTRONIC STRUCTURE, ENERGY-LEVEL DENSITY, HIGH-TC SUPERCONDUCTORS, STRONTIUM OXIDES, SULFUR ADDITIONS, TRANSITION TEMPERATURE

Descriptors (DEC)

ALKALINE EARTH METAL COMPOUNDS, BISMUTH COMPOUNDS, CALCIUM COMPOUNDS, CHALCOGENIDES, COPPER COMPOUNDS, ELECTRICAL PROPERTIES, MATERIALS, MATHEMATICAL MODELS, NUCLEAR MODELS, OXIDES, OXYGEN COMPOUNDS, PHYSICAL PROPERTIES, STRONTIUM COMPOUNDS, SUPERCONDUCTORS, THERMODYNAMIC PROPERTIES, TRANSITION ELEMENT COMPOUNDS

Reference NumberReference Number

23014260

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