Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - High-field spin-polarization transition in the Landau bands of quasi-2D electron gases with strong lateral modulation
AU - Petit, Florent
AU - Sfaxi, Larbi
AU - Lelarge, Francois
AU - Cavanna, A
AU - Hayne, M
AU - Etienne, Bernard
PY - 1997/4/20
Y1 - 1997/4/20
N2 - 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.
AB - 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.
KW - PARTICLE RELAXATION-TIME
KW - MOLECULAR-BEAM EPITAXY
KW - SCATTERING TIME
KW - HETEROSTRUCTURES
KW - SUPERLATTICES
KW - DEPOSITION
KW - ACTIVATION
KW - GROWTH
KW - ARRAYS
KW - LAYER
U2 - 10.1209/epl/i1997-00229-y
DO - 10.1209/epl/i1997-00229-y
M3 - Journal article
VL - 38
SP - 225
EP - 230
JO - EPL
JF - EPL
SN - 0295-5075
IS - 3
ER -