Charge excitation and transport in pseudospin quantum Hall ferromagnets

Koji Muraki, Tadashi Saku, Yoshiro Hirayama

Research output: Contribution to journalConference article

Abstract

Studies on pseudospin quantum Hall ferromagnets involving the N = 1 Landau level (LL) of the symmetric state and the N = 0 LL of the antisymmetric state in strongly-coupled double quantum wells are presented. Measurements of the charge excitation gap for ν = 4 (3 and 5) reveal easy-axis (easy-plane) anisotropy. Resistance spikes observed for ν = 4 are ascribed to transport along domain walls. We also discuss the effects of potential asymmetry.

Original languageEnglish
Pages (from-to)107-108
Number of pages2
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume18
Issue number1-3
DOIs
Publication statusPublished - 2003 May 1
Externally publishedYes
Event23rd International Conference on Low Temperature Physics - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27

Keywords

  • Domain wall
  • Pseudospin
  • Quantum Hall effect
  • Quantum Hall ferromagnet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Charge excitation and transport in pseudospin quantum Hall ferromagnets'. Together they form a unique fingerprint.

  • Cite this