Breakdown of particle-hole symmetry in the lowest Landau level revealed by tunneling spectroscopy

J. P. Eisenstein, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Tunneling measurements on 2D electron gases at high magnetic field reveal a qualitative difference between the two spin sublevels of the lowest Landau level. While the tunneling current-voltage characteristic at filling factor ν = 1 / 2 is a single peak shifted from zero bias by a Coulomb pseudogap, the spectrum at ν = 3 / 2 shows a well-resolved double peak structure. This difference is present regardless of whether ν = 1 / 2 and ν = 3 / 2 occur at the same or different magnetic fields. No analogous effect is seen at ν = 5 / 2 and 7/2 in the first excited Landau level.

Original languageEnglish (US)
Pages (from-to)1867-1870
Number of pages4
JournalSolid State Communications
Volume149
Issue number43-44
DOIs
StatePublished - Nov 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

Keywords

  • D. Tunneling

Fingerprint

Dive into the research topics of 'Breakdown of particle-hole symmetry in the lowest Landau level revealed by tunneling spectroscopy'. Together they form a unique fingerprint.

Cite this