We study the phase diagram, ground state properties, and excitation gaps of a frustrated spin-Peierls chain, i.e. a spin-Peierls chain with both nearest neighbor exchange J1 and next nearest neighbor exchange J2. The phase diagram is calculated using a bosonization Renormalization-Group (RG) method. We propose a (bosonic) bond-operator mean field approximation to calculate the ground state properties and excitation gaps.
@article{arxiv.cond-mat/9507041,
title = {Frustrated Spin-Peierls Chains},
author = {Jun Zang and A. R. Bishop and D. Schmeltzer},
journal= {arXiv preprint arXiv:cond-mat/9507041},
year = {2009}
}
Comments
14 pages, 7 figures included in the compressed uuencoded file. To be published in Phys. Rev. B (Sept. 1995)