Numerical Kubo formula study of frictional drag in the integer quantum Hall regime

K. Nomura, A. H. Macdonald

研究成果: ジャーナルへの寄稿学術誌査読

抄録

We study interlayer factional drag between two-dimensional electron systems in the strong magnetic field limit by evaluating the weak-coupling Kubo formula for interlayer drag numerically. The key quantity in this theory is the disorder averaged "triangle function", a product of three Greens functions of electrons that represents the dc current response of electrons in one layer to charge fluctuations in a remote current-carrying layer. We find that the disorder averaged triangle functions are proportional to the momentum transfer q→ at small |q→| and that they change sign under a ν → 1 - ν particle-hole transformations, vanishing for half-filled Landau levels.

本文言語英語
ページ(範囲)3621-3624
ページ数4
ジャーナルInternational Journal of Modern Physics B
18
27-29
DOI
出版ステータス出版済み - 11月 30 2004
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 凝縮系物理学

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