A mean-field approach to a discrete dipolar spin model with uniaxial magnetic anisotropy

Yusuke Tomita; Shunsuke Yanai; Hajime Takayama

doi:10.1142/S0129183109014400

A mean-field approach to a discrete dipolar spin model with uniaxial magnetic anisotropy

Yusuke Tomita, Shunsuke Yanai, Hajime Takayama

研究成果: Article › 査読

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Using the mean-field approximation, we study the reorientation transition in a discrete dipolar spin model. We array the d-dimensional spins in the d-1-dimensional hypercubic lattice points, and apply the magnetic anisotropy in the dth direction. Even though the long-range dipolar interaction is truncated to the nearest-neighbor interaction, the model exhibits the reorientation transition. The effects of the exchange interaction on the dipolar system are also studied.

本文言語	English
ページ（範囲）	1335-1343
ページ数	9
ジャーナル	International Journal of Modern Physics C
巻	20
号	9
DOI	https://doi.org/10.1142/S0129183109014400
出版ステータス	Published - 2009 9月
外部発表	はい

ASJC Scopus subject areas

統計物理学および非線形物理学
数理物理学
物理学および天文学（全般）
コンピュータサイエンスの応用
計算理論と計算数学

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abstract = "Using the mean-field approximation, we study the reorientation transition in a discrete dipolar spin model. We array the d-dimensional spins in the d-1-dimensional hypercubic lattice points, and apply the magnetic anisotropy in the dth direction. Even though the long-range dipolar interaction is truncated to the nearest-neighbor interaction, the model exhibits the reorientation transition. The effects of the exchange interaction on the dipolar system are also studied.",

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author = "Yusuke Tomita and Shunsuke Yanai and Hajime Takayama",

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AU - Yanai, Shunsuke

AU - Takayama, Hajime

N1 - Funding Information: Yusuke Tomita would like to thank Professor K. Hukushima for bringing our attention to the mean-field calculation. This work was supported by the Next Generation Super Computing Project, Nanoscience Program, MEXT, Japan.

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N2 - Using the mean-field approximation, we study the reorientation transition in a discrete dipolar spin model. We array the d-dimensional spins in the d-1-dimensional hypercubic lattice points, and apply the magnetic anisotropy in the dth direction. Even though the long-range dipolar interaction is truncated to the nearest-neighbor interaction, the model exhibits the reorientation transition. The effects of the exchange interaction on the dipolar system are also studied.

AB - Using the mean-field approximation, we study the reorientation transition in a discrete dipolar spin model. We array the d-dimensional spins in the d-1-dimensional hypercubic lattice points, and apply the magnetic anisotropy in the dth direction. Even though the long-range dipolar interaction is truncated to the nearest-neighbor interaction, the model exhibits the reorientation transition. The effects of the exchange interaction on the dipolar system are also studied.

KW - Critical phenom-ena

KW - Dipolar lattice

KW - Mean-field theory

KW - Reorientation transition

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A mean-field approach to a discrete dipolar spin model with uniaxial magnetic anisotropy

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