Anisotropic magnetotransport near the ν = frac(2, 3) quantum Hall state

Masayuki Morino, Kazuki Iwata, Michiro Suzuki, Akira Fukuda, Anju Sawada, Zyun F. Ezawa, Norio Kumada, Yoshiro Hirayama

Research output: Contribution to journalArticlepeer-review

Abstract

We report experimental results on an anisotropic magnetotransport of a bilayer electron system at the Landau level filling factor ν = frac(2, 3) under tilted magnetic fields. We find that the magnetoresistance changes when the direction of applied in-plane field B is changed with respect to the direction of the current while keeping the strength of B fixed. This anisotropy only appears at the ground state where interlayer electron tunneling is permitted. Therefore, this phenomenon indicates that bilayer systems at ν = frac(2, 3) with interlayer tunneling inherently have a dissipation mechanism related to the direction of the in-plane field.

Original languageEnglish
Pages (from-to)152-155
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume34
Issue number1-2
DOIs
Publication statusPublished - 2006 Aug
Externally publishedYes

Keywords

  • Bilayer systems
  • Magnetoresistance
  • Quantum Hall state
  • Tilted magnetic fields

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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