Symmetry of hole states in superconducting oxides: Correlation with T sub c

Journal Article · Mon Jun 17 00:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.3209· OSTI ID:5728805

Di Castro, C; Feiner, L F; Grilli, M ^[1]

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1. Dipartimento di Fisica, Universita La Sapienza,'' piazzale A. Moro 2, 00185 Roma, Italy (IT) Philips Research Laboratories, P.O. Box 80000, 5600 JA Eindhoven, The Netherlands

Despite their small occupancy, the apical oxygen {ital p}{sub {ital z}} states have the indirect effect of modifying the relative occupancy of holes in states with different local symmetries in the CuO{sub 2} planes. A well-defined correlation is found between the maximum critical temperature {ital T}{sub {ital c}}{sup max} of various cuprates and the excess of holes in states with local {ital a}{sub 1} symmetry with respect to the doping {delta}{sup max} at which {ital T}{sub {ital c}}{sup max} is obtained for each compound. Implications for superconductivity models are discussed.

• OSTI ID: 5728805
• Journal Information: Physical Review Letters; (USA), Vol. 66:24; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
ELECTRONIC STRUCTURE
CALCIUM OXIDES
COPPER OXIDES
HOLES
LANTHANUM OXIDES
LEAD OXIDES
MEAN-FIELD THEORY
PAIRING INTERACTIONS
STRONTIUM OXIDES
THALLIUM OXIDES
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
INTERACTIONS
LANTHANUM COMPOUNDS
LEAD COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
656100* - Condensed Matter Physics- Superconductivity