Low Temperature Properties of the One Dimensional Polaron Band: I. Extreme Band Narrowing Regime.
Abstract
The authors consider a narrow one dimensional tight binding chain with intra-atomic Coulomb repulsions described in the Hubbard model. The electrons at each site are furthermore assumed coupled to a high frequency local oscillator. In the limit, where the oscillator frequency is large compared to the bandwidth and in the extreme band narrowing regime, for various electron densities, the authors found that: half-filled band ground state is an antiferromagnetic insulator; one-third filled band is a diamagnetic insulator; one-quarter filled band is a weakly coupled system of bound singlet pairs somewhat reminiscent of superconductivity. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1973
- Accession Number
- AD0779076
Entities
People
- G. Beni
- J. Kanamori
- P. Pincus
Organizations
- University of California, Los Angeles