Interlayer quantum coherence and anomalous stability of ν = 1 bilayer quantum Hall state

A. Sawada, Z. F. Ezawa, H. Ohno, Y. Horikoshi, S. Kishimoto, F. Matsukura, Y. Ohno, M. Yasumoto, A. Urayama

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have compared the stability of the ν = 2, 1 and 2/3 quantum Hall states in a bilayer two-dimensional electron system by changing the total density and the density ratio of electrons in the two quantum wells. The following experimental results have been obtained: The ν = 1 state is stable over a wide range of the density difference. It is least stable when the electron density is balanced. The state collapses when the total density is more than a critical value. The density ratio has a small influence on the stability of ν = 1. These features are not shared by the other quantum Hall states. We argue that they give an indication of the interlayer quantum coherence.

本文言語English
ページ(範囲)836-840
ページ数5
ジャーナルPhysica B: Condensed Matter
249-251
DOI
出版ステータスPublished - 1998 6 17

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
  • 電子工学および電気工学

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