Superconducting Transition in Doped Antiferromagnet

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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.
5 pages, 1 figure

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/18435

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0110527
 http://arxiv.org/abs/cond-mat/0110527

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arXiv