Abstract
Effect of the diagonal transfer t′ in a square lattice is studied, by applying a variational Monte Carlo method to the t-J model. Condensation energy of d-wave superconductivity increases (decreases) for hole-doped cases, t′/t<0 (electron-doped cases, t′/t>0), whereas antiferromagnetism (AF) is suppressed (enhanced) for t′/t<0 (t′/t>0). Furthermore, the AF state off half filling is intrinsically unstable and phase separates for t′/t≲0, but stable even away from half filling for t′/t∼0.2. This result consistently explains recent experiments on the stability of the AF phases in cuprates.
| Original language | English |
|---|---|
| Pages (from-to) | 112-114 |
| Number of pages | 3 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 67 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2006 Jan 1 |
Keywords
- A. Superconductors
- D. Electrical properties
- D. Superconductivity
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
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Watanabe, T., Yokoyama, H., Tanaka, Y., Inoue, J. I., & Ogata, M. (2006). Effect of next-nearest-neighbor transfer on superconductivity and antiferromagnetism in two-dimensional t-J model. Journal of Physics and Chemistry of Solids, 67(1-3), 112-114. https://doi.org/10.1016/j.jpcs.2005.10.009