Low-energy physics of high-temperature superconductors

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:6985909

Emery, V J ^[1]; Kivelson, S A ^[2]

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1. Brookhaven National Lab., Upton, NY (United States). Physics Dept.
2. California Univ., Los Angeles, CA (United States). Dept. of Physics

It is argued that the low-energy properties of high temperature superconductors are dominated by the interaction between the mobile holes and a particular class of collective modes, corresponding to local large-amplitude low-energy fluctuations in the hole density. The latter are a consequence of the competition between the effects of long-range Coulomb interactions and the tendency of a low concentration of holes in an antiferromagnet to phase separate. The low-energy behavior of the system is governed by the same fixed point as the two-channel Kondo problem, which accounts for the universality'' of the properties of the cuprate superconductors. Predictions of the optical properties and the spin dynamics are compared with experiment. The pairing resonance of the two Kondo problem gives a mechanism of high temperature superconductivity with an unconventional symmetry of the order parameter.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6985909
• Report Number(s): BNL-47823; CONF-9103112-8; ON: DE92040672
• Resource Relation: Conference: Conference on fermiology of high T sub c superconductors, Argonne, IL (United States), 25-27 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
BARIUM COMPOUNDS
COPPER OXIDES
FLUCTUATIONS
HOLE MOBILITY
KONDO EFFECT
SPIN
YTTRIUM COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ANGULAR MOMENTUM
CHALCOGENIDES
COPPER COMPOUNDS
MOBILITY
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
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