Charge order, superconductivity, and a global phase diagram of doped antiferromagnets

Authors
Vojta, M Sachdev, S
Citation
M. Vojta et S. Sachdev, Charge order, superconductivity, and a global phase diagram of doped antiferromagnets, PHYS REV L, 83(19), 1999, pp. 3916-3919
Citations number
24
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
19
Year of publication
1999
Pages
3916 - 3919
Database
ISI
SICI code
0031-9007(19991108)83:19<3916:COSAAG>2.0.ZU;2-J
Abstract
We investigate the interplay between lattice symmetry breaking and supercon ducting order in a two-dimensional model of doped antiferromagnets, with lo ng-range Coulomb interactions and Sp(2N) spin symmetry, in the large-N limi t. Our results motivate the outline of a global phase diagram for the cupra te superconductors. We describe the quantum transitions between the phases, the evolution of their fermion excitation spectrum, and the experimental i mplications.