paper

Quantum Phase Diagram of the t-Jz Chain Model

arXiv:cond-mat/0003158 · doi:10.1103/PhysRevLett.85.4755

Abstract

We present the quantum phase diagram of the one-dimensional - model for arbitrary spin (integer or half-integer) and sign of the spin-spin interaction , using an {\it exact} mapping to a spinless fermion model that can be solved {\it exactly} using the Bethe ansatz. We discuss its superconducting phase as a function of hole doping . Motivated by the new paradigm of high temperature superconductivity, the stripe phase, we also consider the effect the antiferromagnetic background has on the - chain intended to mimic the stripe segments.

4 pages, 2 figures

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