Low-energy physics of high-temperature superconductors
- Brookhaven National Lab., Upton, NY (United States). Physics Dept.
- 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, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 10178832
- 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; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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