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
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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 -