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- W1998572188 abstract "Abstract This paper is devoted to a careful estimate, with a complete Gutzwiller projection on the whole lattice , of the effects of the particle number constraint on the Schwinger-boson slave-fermion mean-field states of the t-J model. Both the canted and the spiral states are considered. A detailed analysis is carried out at t/J =2. We find specifically the following: (a) the canted state has the lower ground-state energies, (b) the system is long-range correlated at small dopings (δ c ≊0.07). For δ>δ c , the spin-spin correlation s have a finite range. (c) In the latter case, the energy is sensitive to a linear- T gap in the bosonic spectrum. In addition, there exists a peculiar quasi-degeneracy associated with this behavior. Relations of these results to the copper-oxide superconductors are suggested." @default.
- W1998572188 created "2016-06-24" @default.
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- W1998572188 date "1992-12-01" @default.
- W1998572188 modified "2023-09-27" @default.
- W1998572188 title "Gutzwiller corrections on mean-field states of the t-J model" @default.
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- W1998572188 doi "https://doi.org/10.1016/0921-4534(92)90577-y" @default.
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