2001/10/24 by Ming Shaw, Shaw, Ming, Z. Y. Weng +3
Physics and Astronomy · #FOS: Physical sciences #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0110527
5 pages, 1 figure
arxiv created 2001/10/24 · arxiv updated 2009/11/30
We investigate the superconducting transition in a doped antiferromagnet. Based on the phase string framework of the t-J model, an effective model describing the phase-coherence transition is obtained and is studied through duality transformation and renormalization group treatment . We show that such a topological transition is controlled by spin excitations, with the transition temperature determined by a characterisitic spin excitation energy. The existence of an Ising-like long range order of staggered current loops is also discussed.