Neutral fermion, charge-e boson excitations in the resonating-valence-bond state and superconductivity in La/sub 2/CuO/sub 4/-based compounds

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.627· OSTI ID:5530675

Zou, Z; Anderson, P W

We derive the neutral fermion excitation spectrum in the resonating-valence-bond state based on a fermion-boson field theory. It is formally shown that charge-e bosons are created upon doping while the neutral fermion excitation remians gapless, predicting a linear low-temperature specific heat Cproportional..gamma..T in the superconducting state. Bose condensation in doped samples leads to the observed superconductivity with true ''off-diagonal long-range order.''

• Research Organization: Joseph Henry Laboratories of Physics, Princeton University, Princeton, New Jersey 08544
• OSTI ID: 5530675
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:1; ISSN PRBMD
• 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
BAND THEORY
BOSE-EINSTEIN CONDENSATION
BOSONS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERMIONS
FIELD THEORIES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPECIFIC HEAT
SPECTRA
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS