Two-Coupled Chains with Spin-Anisotropic Backward Scattering

Details Two-Coupled Chains with Spin-Anisotropic Backward Scattering Two-Coupled Chains with Spin-Anisotropic Backward Scattering

1998-05-21

arxiv.org/abs/cond-mat/9805270v2

Physica C 303 (1998) 246-256

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 4 figures, to be published in Physica C

Scientific paper

By applying renormalization group method to the bosonized Hamiltonian of two-coupled chains with repulsive intrachain interaction, we have examined a role of backward scattering with a spin-anisotropy which competes with interchain hopping. From calculation of a dominant state in the limit of low energy, it is found that superconducting state moves into spin density wave state when the anisotropy becomes larger than a critical value. Further phase diagram is shown on the plane of g-ology.

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