Mean-field study of the interplay between antiferromagnetism and d-wave superconductivity
Abstract
The interplay between antiferromagnetism and d-wave superconductivity is studied in a mean-field approximation for a generic microscopic Hamiltonian with short-range repulsion and near-neighbor attraction. In the presence of competing microscopic interactions, the phase boundaries of antiferromagnetic and superconducting states are significantly modified in some region of the doping-temperature plane. The transition between superconductivity and antiferromagnetism occurs through a phase where both order parameters coexist with a third, dynamically generated, spin-triplet amplitude. This dynamical generation of a new order parameter is not restricted to a system with antiferromagnetism and d-wave superconductivity, but is a generic feature for fermionic systems. The dynamically generated spin-triplet order parameter is found to be robust to variations in the mean-field Hamiltonian.
Keywords
Cite
@article{arxiv.cond-mat/0004280,
title = {Mean-field study of the interplay between antiferromagnetism and d-wave superconductivity},
author = {Bumsoo Kyung},
journal= {arXiv preprint arXiv:cond-mat/0004280},
year = {2009}
}
Comments
8 pages, 5 figures, To appear in Phys. Rev. B