Stripe Formation within SO(5) Theory
Superconductivity
2007-05-23 v2
Abstract
We study the formation of stripe order within the SO(5) theory of high T_c superconductivity. We show that spin and charge modulations arise as a result of the competition between a local tendency to phase separate and the long-range Coulomb interaction. This frustrated phase separation leads to hole-rich and hole-poor regions which are respectively superconducting and antiferromagnetic. A rich variety of microstructures ranging from droplet and striped to inverted-droplet phases are stabilized, depending on the charge carrier concentration. We show that the SO(5) energy functional favors non-topological stripes.
Cite
@article{arxiv.cond-mat/9812282,
title = {Stripe Formation within SO(5) Theory},
author = {M. Veillette and Ya. B. Bazaliy and A. J. Berlinsky and C. Kallin},
journal= {arXiv preprint arXiv:cond-mat/9812282},
year = {2007}
}
Comments
4 pages; revisions include additional comments and references; edited for length