Critical behavior of ac conductivity near the Anderson transition

Shima, Hiroyuki; Nakayama, Tsuneyoshi

Physical Review B, 1999, 60(20), 14066-14071

Permalink : https://hdl.handle.net/2115/6071

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アクセス権	open access
URI	https://hdl.handle.net/2115/6071
タイトル	Critical behavior of ac conductivity near the Anderson transition
著者	e-Rad_Researcher 40312392 著者名 Shima, Hiroyuki 島, 弘幸
著者	著者名 Nakayama, Tsuneyoshi
言語	英語
発行日	1999-11-15
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	60(20)
ページ	14066-14071
抄録	We investigate the dynamic scaling behavior of ac conductivity σ(ω) in three-dimensional (3D) unitary and symplectic systems in addition to orthogonal one by means of large-scale simulations. It is demonstrated that the ac conductivity near the Anderson transition behave as σ(ω)∝ωδ(δ≃1/3) for all of the above systems. Numerical calculations are performed by an efficient algorithm based on the forced oscillator method (FOM), which enables us to accurately treat large-scale quantum systems with less computational effort. The values of the exponents δ are determined by the finite-time scaling method for the FOM.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 1999 American Physical Society
PISSN	1098-0121
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.60.14066