Charge excitation and transport in pseudospin quantum Hall ferromagnets

Koji Muraki, Tadashi Saku, Yoshiro Hirayama

Research output: Contribution to journalConference articlepeer-review


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
Issue number1-3
Publication statusPublished - 2003 May
Event23rd International Conference on Low Temperature Physics - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27


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


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