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 | |
| Publication status | Published - 2004 Jan 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Lee, Y. W., & Lee, Y-L. (2004). Spin-gap phase in the extended t - J chain. European Physical Journal B, 37(1), 7-14. https://doi.org/10.1140/epjb/e2004-00024-2