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- W1977475482 abstract "The pairing of quasiparticles in a CuO$_2$ plane is studied within a spin polaron formulation of the $t$-$t^{'}$-$J$ model. Our numerical solution of the Eliashberg equations unambiguously shows d-wave pairing between spin polarons on different sublattices mediated by the exchange of spin-fluctuations, and a strong doping dependence of the quasiparticle bandwidth. The transition temperature $T_c$ is an increasing function of $J/t$ and crosses a maximum at an optimal doping concentration $delta_{opt}$. For the t-J model with $J/t=0.4$ we obtain $T_csimeq 0.013 t$ at $delta_{opt}simeq 0.2$." @default.
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- W1977475482 date "1997-05-01" @default.
- W1977475482 modified "2023-09-27" @default.
- W1977475482 title "Superconducting pairing of spin polarons in the t-J model" @default.
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- W1977475482 doi "https://doi.org/10.1103/physrevb.55.r11997" @default.
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