Resonating--valence-bond theory of phase transitions and superconductivity in La/sub 2/CuO/sub 4/-based compounds

Journal Article · Mon Jun 29 00:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.2790· OSTI ID:6423036

Anderson, P W; Baskaran, G; Zou, Z; Hsu, T

We identify the mysterious high-T ''twitch'' transition in La/sub 2/CuO/sub 4/ with the mean-field resonating-valence-bond transition of the Heisenberg model of Baskaran, Zou, and Anderson. The structure distortions are caused by Coulomb correlations of the pair wave function. In the pure compound the pseudo-Fermi surface of the spin soliton nests and antiferromagnetism occurs at 240 K. We discuss briefly superconductivity and the nature of excitations in the system.

• Research Organization: Joseph Henry Laboratories of Physics, Princeton University, Princeton, New Jersey 08544
• OSTI ID: 6423036
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 58:26
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER OXIDES
SUPERCONDUCTIVITY
LANTHANUM OXIDES
EXCITATION
FERMI LEVEL
HEISENBERG MODEL
PHASE TRANSFORMATIONS
SOLITONS
SPIN
ANGULAR MOMENTUM
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
LANTHANUM COMPOUNDS
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUASI PARTICLES
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity