Abstract
We have studied the ground state properties of a two-dimensional three-orbital Hubbard model as an effective lowenergy model for a novel 5d Mott insulator, Sr2IrO4. The transition from the paramagnetic metal to the magnetic insulator with an in-plane antiferromagnetic order is successfully described by using the variational Monte Carlo method. The momentum distribution function is calculated for system sizes up to 16×16 sites, which makes it possible to discuss the metal-insulator transition in detail.
| Original language | English |
|---|---|
| Article number | SB006 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 80 |
| Issue number | SUPPL. B |
| DOIs | |
| Publication status | Published - 2011 Dec |
| Externally published | Yes |
Keywords
- 5d electron system
- Spin-orbit coupling
- Spin-orbit-induced Mott insulator
- Three-orbital Hubbard model
- Variational Monte Carlo method
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Cite this
Watanabe, H., Shirakawa, T., & Yunoki, S. (2011). Spin-orbit-induced mott insulator in 5d electron system. Journal of the Physical Society of Japan, 80(SUPPL. B), [SB006]. https://doi.org/10.1143/JPSJS.80SB.SB006