Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 20/04/1997 |
---|---|
<mark>Journal</mark> | EPL |
Issue number | 3 |
Volume | 38 |
Number of pages | 6 |
Pages (from-to) | 225-230 |
Publication Status | Published |
<mark>Original language</mark> | English |
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.