Interlayer charge transfer in bilayer quantum Hall states at various filling factors

K. Muraki, T. Saku, Y. Hirayama, N. Kumada, A. Sawada, Z. F. Ezawa

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We have studied bilayer quantum Hall (QH) effects in double-quantum-well structures at various Landau-level (LL) filling factors v. The stability of various QH states are examined by varying the density balance between the two layers. We observe a remarkable v-dependent behavior; the interlayer charge transfer is allowed for particular values of v, which then repeat in a characteristic sequence with a period of 4. We employ a pseudospin picture, by which the interlayer charge transfer is expressed as a rotation of the total pseudospin. The ability or inability to accommodate the charge transfer represents the degree of pseudospin polarization in the bilayer QH state.

Original languageEnglish
Pages (from-to)625-629
Number of pages5
JournalSolid State Communications
Volume112
Issue number11
DOIs
Publication statusPublished - 1999 Oct 29
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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