Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Photoluminescence of stacked self-assembled InP quantum dots in high magnetic fields
AU - Hayne, M
AU - Provoost, Rik
AU - Zundel, Markus K
AU - Manz, Yvonne M
AU - Eberl, Karl
AU - Moshchalkov, Victor V
PY - 2000/8
Y1 - 2000/8
N2 - We have measured the photoluminescence of stacked layers of self-assembled InP quantum dots in magnetic fields up to 50 T. In the samples with three stacked layers of dots strong electronic coupling was clearly observed for layer separations of 2 and 4 nm. For a sample with only two stacked layers of dots (separated by 4 nm) no coupling was observed. We attribute this difference in behaviour to a model in which the coupling is via holes that are weakly bound in the GaInP layers between the dots. Since the doubly stacked layers have only one such layer, no coupling is possible. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - We have measured the photoluminescence of stacked layers of self-assembled InP quantum dots in magnetic fields up to 50 T. In the samples with three stacked layers of dots strong electronic coupling was clearly observed for layer separations of 2 and 4 nm. For a sample with only two stacked layers of dots (separated by 4 nm) no coupling was observed. We attribute this difference in behaviour to a model in which the coupling is via holes that are weakly bound in the GaInP layers between the dots. Since the doubly stacked layers have only one such layer, no coupling is possible. (C) 2000 Elsevier Science B.V. All rights reserved.
KW - self-assembled quantum dots
KW - InP
KW - pulsed magnetic fields
U2 - 10.1016/S1386-9477(00)00128-4
DO - 10.1016/S1386-9477(00)00128-4
M3 - Journal article
VL - 8
SP - 125
EP - 128
JO - Physica E: Low-dimensional Systems and Nanostructures
JF - Physica E: Low-dimensional Systems and Nanostructures
SN - 1386-9477
IS - 2
ER -