Theory for the density of states and antiferromagnetism in CuO sub 2 planes of high- Tc superconductors

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.10192· OSTI ID:5876618

Zhang, W; Avignon, M; Bennemann, K H ^[1]

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1. Institute for Theoretical Physics, Freie Universitaet Berlin, Arnimallee 14, D-1000 Berlin 33 (Federal Republic of Germany)

Using an extension of the Gutzwiller approximation, we calculated the density of states, magnetic moment, and the antiferromagnetic ground-state energy of high-{Tc} copper oxides. The Hubbard Hamiltonian used for the calculations includes hopping between oxygen atoms as well as Cu-O hopping. It is shown that hopping between oxygen atoms is particularly significant for the magnetic properties. The effect of doping, on-site hole repulsion, and charge-transfer energy on the local density of states, magnetic moment of Cu, and antiferromagnetic ground-state energy is studied in detail.

• OSTI ID: 5876618
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:16; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ENERGY LEVELS
ENERGY-LEVEL DENSITY
GROUND STATES
HIGH-TC SUPERCONDUCTORS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS