Spin-orbit-induced mott insulator in 5d electron system

Hiroshi Watanabe; Tomonori Shirakawa; Seiji Yunoki

doi:10.1143/JPSJS.80SB.SB006

Spin-orbit-induced mott insulator in 5d electron system

Hiroshi Watanabe, Tomonori Shirakawa, Seiji Yunoki

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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	https://doi.org/10.1143/JPSJS.80SB.SB006
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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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.",

keywords = "5d electron system, Spin-orbit coupling, Spin-orbit-induced Mott insulator, Three-orbital Hubbard model, Variational Monte Carlo method",

author = "Hiroshi Watanabe and Tomonori Shirakawa and Seiji Yunoki",

year = "2011",

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doi = "10.1143/JPSJS.80SB.SB006",

language = "English",

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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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JF - Journal of the Physical Society of Japan

SN - 0031-9015

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Spin-orbit-induced mott insulator in 5d electron system

Abstract

Keywords

ASJC Scopus subject areas

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