Dilution effects in classical and quantum orbital systems

T. Tanaka; M. Matsumoto; S. Ishihara

doi:10.1016/j.jmmm.2006.10.133

Dilution effects in classical and quantum orbital systems

T. Tanaka, M. Matsumoto, S. Ishihara

理学研究科・物理学専攻

研究成果: Article › 査読

抄録

We examine the dilution effects in an orbital model, termed the orbital compass model, which corresponds to the two-dimensional version of the e_g-orbital model. An unconventional low-dimensional orbital alignment termed the directional order is confirmed to be realized by utilizing the quantum Monte-Carlo method. Impurity dependence of the ordering temperature of the directional order is numerically examined. We show that the quantum effect makes the directional order robust against doping of impurities.

本文言語	English
ページ（範囲）	804-806
ページ数	3
ジャーナル	Journal of Magnetism and Magnetic Materials
巻	310
号	2 SUPPL. PART 1
DOI	https://doi.org/10.1016/j.jmmm.2006.10.133
出版ステータス	Published - 2007 3月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

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10.1016/j.jmmm.2006.10.133

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title = "Dilution effects in classical and quantum orbital systems",

abstract = "We examine the dilution effects in an orbital model, termed the orbital compass model, which corresponds to the two-dimensional version of the eg-orbital model. An unconventional low-dimensional orbital alignment termed the directional order is confirmed to be realized by utilizing the quantum Monte-Carlo method. Impurity dependence of the ordering temperature of the directional order is numerically examined. We show that the quantum effect makes the directional order robust against doping of impurities.",

keywords = "Dilution effect, Orbital order, Quantum Monte-Carlo simulation",

author = "T. Tanaka and M. Matsumoto and S. Ishihara",

note = "Funding Information: This work was supported by Grant-in-Aid for Scientific Research, JSPS KAKENHI (16340094, 16104005) and TOKUTEI ”High Field Spin Science in 100T” (No.451, 18044001) from MEXT, NAREGI, and CREST. ",

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doi = "10.1016/j.jmmm.2006.10.133",

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T1 - Dilution effects in classical and quantum orbital systems

AU - Tanaka, T.

AU - Matsumoto, M.

AU - Ishihara, S.

N1 - Funding Information: This work was supported by Grant-in-Aid for Scientific Research, JSPS KAKENHI (16340094, 16104005) and TOKUTEI ”High Field Spin Science in 100T” (No.451, 18044001) from MEXT, NAREGI, and CREST.

PY - 2007/3

Y1 - 2007/3

N2 - We examine the dilution effects in an orbital model, termed the orbital compass model, which corresponds to the two-dimensional version of the eg-orbital model. An unconventional low-dimensional orbital alignment termed the directional order is confirmed to be realized by utilizing the quantum Monte-Carlo method. Impurity dependence of the ordering temperature of the directional order is numerically examined. We show that the quantum effect makes the directional order robust against doping of impurities.

AB - We examine the dilution effects in an orbital model, termed the orbital compass model, which corresponds to the two-dimensional version of the eg-orbital model. An unconventional low-dimensional orbital alignment termed the directional order is confirmed to be realized by utilizing the quantum Monte-Carlo method. Impurity dependence of the ordering temperature of the directional order is numerically examined. We show that the quantum effect makes the directional order robust against doping of impurities.

KW - Dilution effect

KW - Orbital order

KW - Quantum Monte-Carlo simulation

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JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 1

ER -

Dilution effects in classical and quantum orbital systems

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