Superconducting pairing, and the collective magnetic excitation in the extended 2-dimensional t-J model

Oleg Sushkov

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arXiv · cond-mat/9903028

Superconducting pairing, and the collective magnetic excitation in the extended 2-dimensional t-J model

Oleg Sushkov

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Abstract

To investigate the non-Fermi liquid behavior we consider the extended two-dimensional t-J model which includes additional hopping t''. In the regime t,J << t'' we were able to solve the model analytically. It has a very rich phase diagram including antiferromagnetic (AF) insulator and AF strange metal with different kinds of pseudospin-singlet superconducting pairings (p,d,g-waves). We also demonstrate a collective triplet excitation with energy below the superconducting gap

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Oleg Sushkov. 1999-03-02. Superconducting pairing, and the collective magnetic excitation in the extended 2-dimensional t-J model. https://arxiv.org/abs/cond-mat/9903028

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