The incoherent part of the spin-wave polarization operator in the t-J model
β Scribed by D.W Murray; O.P Sushkov
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 430 KB
- Volume
- 258
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
We calculate the one-hole spectral function for the polarized t-J model using exact diagonalization for a finite size cluster. A well-defined quasiparticle peak appears at the bottom of the spectrum for intermediate values of J. The momentum of the quasiparticle corresponding to the bottom of the ba
Long-range (r ~ p ~-~ >> lattice spacing) spin-wave exchange produces a very strong pairing of the holes. Solutions of the BCStype equation for the superconducting gap A are found for various symmetries. The strongest pairing corresponds to d wave symmetry. The physical reasons for the strong pairin