12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

97%

97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > High-field spin-polarization transition in the ...
View graph of relations

« Back

High-field spin-polarization transition in the Landau bands of quasi-2D electron gases with strong lateral modulation

Research output: Contribution to journalJournal article

Published

  • Florent Petit
  • Larbi Sfaxi
  • Francois Lelarge
  • A Cavanna
  • M Hayne
  • Bernard Etienne
<mark>Journal publication date</mark>20/04/1997
<mark>Journal</mark>EPL
Issue3
Volume38
Number of pages6
Pages225-230
<mark>Original language</mark>English

Abstract

2D electron gases, imbedded in a 1D lateral potential (in AlxGa1-xAs), made by a periodic modulation in alloy composition, are obtained by organized epitaxy on vicinal surfaces. The exchange enhancement of the Landau level spin splitting is inhibited up to a strong magnetic field (similar to 6T here). Low-temperature magneto-transport data revealing this effect cannot be explained by disorder but are fully consistent with the large potential gradients associated with the modulation amplitude.