Spin-gap phase in the extended t - J chain

Yu Wen Lee; Yu-Li Lee

doi:10.1140/epjb/e2004-00024-2

Spin-gap phase in the extended t - J chain

Yu Wen Lee, Yu-Li Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We study the one-dimensional deformed t -t′ - J model in terms of the continuum field theories. We found that at low doping concentration and far away from the phase separation regime, there are two phases: the Luttinger liquid and the Luther-Emery liquid, depending on t′/t < (t′/t)_c or t′/t > (t′/t)_c, where (t′/t)_c > 0. Moreover, the singlet superconducting correlations are dominant in the Luther-Emery liquid.

Original language	English
Pages (from-to)	7-14
Number of pages	8
Journal	European Physical Journal B
Volume	37
Issue number	1
DOIs	https://doi.org/10.1140/epjb/e2004-00024-2
Publication status	Published - 2004 Jan 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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