Phys. Rev. Lett. 85, 4755–4758 (2000)Quantum Phase Diagram of the t-Jz Chain ModelReceived 9 March 2000; published in the issue dated 27 November 2000 We present the quantum phase diagram of the one-dimensional t- Jz model for arbitrary spin (integer or half-integer) and sign of the spin-spin interaction Jz, using an exact mapping to a spinless fermion model that can be solved exactly using the Bethe ansatz. We discuss its superconducting phase as a function of hole doping ν. Motivated by the new paradigm of high temperature superconductivity, the stripe phase, we also consider the effect the antiferromagnetic background has on the t- Jz chain intended to mimic the stripe segments. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.4755
DOI:
10.1103/PhysRevLett.85.4755
PACS:
71.10.Fd, 71.10.Pm, 74.20.Mn
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