Calculation of nuclear quadrupole splitting in high- Tc superconductors

Journal Article · Sat Sep 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.4196· OSTI ID:6419042

Saul, A; Weissmann, M ^[1]

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1. Departamento de Fisica, Comision Nacional de Energia Atomica, Avenida del Libertador 8250, 1429 Buenos Aires (Argentina)

The electric-field gradient at the Cu site in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} is calculated using the molecular orbitals obtained from a cluster calculation. The effects of the cluster geometry, cluster charge, and orbital occupation are studied, and the relation to nuclear-quadrupole-resonance frequencies is discussed. The same type of calculation is performed for clusters with Fe replacing Cu and compared with results of Moessbauer spectra.

• OSTI ID: 6419042
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 42:7; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
BARIUM OXIDES
NUCLEAR QUADRUPOLE RESONANCE
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
COPPER 63
CRYSTAL FIELD
IRON 57
MOESSBAUER EFFECT
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER ISOTOPES
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
IRON ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RESONANCE
STABLE ISOTOPES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
656100* - Condensed Matter Physics- Superconductivity
360204 - Ceramics
Cermets
& Refractories- Physical Properties