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 |
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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)
Cite this
Spin-orbit-induced mott insulator in 5d electron system. / Watanabe, Hiroshi; Shirakawa, Tomonori; Yunoki, Seiji.
In: Journal of the Physical Society of Japan, Vol. 80, No. SUPPL. B, SB006, 12.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spin-orbit-induced mott insulator in 5d electron system
AU - Watanabe, Hiroshi
AU - Shirakawa, Tomonori
AU - Yunoki, Seiji
PY - 2011/12
Y1 - 2011/12
N2 - 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.
AB - 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.
KW - 5d electron system
KW - Spin-orbit coupling
KW - Spin-orbit-induced Mott insulator
KW - Three-orbital Hubbard model
KW - Variational Monte Carlo method
UR - http://www.scopus.com/inward/record.url?scp=84855303325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855303325&partnerID=8YFLogxK
U2 - 10.1143/JPSJS.80SB.SB006
DO - 10.1143/JPSJS.80SB.SB006
M3 - Article
AN - SCOPUS:84855303325
VL - 80
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. B
M1 - SB006
ER -