InAs self-assembled quantum dots as controllable scattering centers near a two-dimensional electron gas
作者： E. Ribeiro , E. Müller , T. Heinzel , H. Auderset , K. Ensslin
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摘要: InAs self-assembled quantum dots are grown in the vicinity of a two-dimensional electron gas. Transport experiments show progressive reduction mobility with increasing dot density, which indicates influence on electrical properties A saturation is observed for highest density samples. Transmission microscopy studies confirm existence and reveal formation vertically aligned double dot. Calculations scattering times due to repulsive potentials agreement experimental data suggest that act as controllable centers can be used tailor gas properties.
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D. Leonard, M. Krishnamurthy, C. M. Reaves, S. P. Denbaars, P. M. Petroff, Direct formation of quantum‐sized dots from uniform coherent islands of InGaAs on GaAs surfaces Applied Physics Letters. ,vol. 63, pp. 3203- 3205 ,(1993) , 10.1063/1.110199
J. M. Moison, F. Houzay, F. Barthe, L. Leprince, E. André, O. Vatel, Self‐organized growth of regular nanometer‐scale InAs dots on GaAs Applied Physics Letters. ,vol. 64, pp. 196- 198 ,(1994) , 10.1063/1.111502
D. Leonard, K. Pond, P. M. Petroff, Critical layer thickness for self-assembled InAs islands on GaAs. Physical Review B. ,vol. 50, pp. 11687- 11692 ,(1994) , 10.1103/PHYSREVB.50.11687
S. Fafard, D. Leonard, J. L. Merz, P. M. Petroff, Selective excitation of the photoluminescence and the energy levels of ultrasmall InGaAs/GaAs quantum dots Applied Physics Letters. ,vol. 65, pp. 1388- 1390 ,(1994) , 10.1063/1.112060
J. -Y. Marzin, J. -M. Gérard, A. Izraël, D. Barrier, G. Bastard, Photoluminescence of single InAs quantum dots obtained by self-organized growth on GaAs. Physical Review Letters. ,vol. 73, pp. 716- 719 ,(1994) , 10.1103/PHYSREVLETT.73.716
R. Leon, P. M. Petroff, D. Leonard, S. Fafard, Spatially Resolved Visible Luminescence of Self-Assembled Semiconductor Quantum Dots Science. ,vol. 267, pp. 1966- 1968 ,(1995) , 10.1126/SCIENCE.267.5206.1966
H. Drexler, D. Leonard, W. Hansen, J. P. Kotthaus, P. M. Petroff, Spectroscopy of quantum levels in charge-tunable InGaAs quantum dots. Physical Review Letters. ,vol. 73, pp. 2252- 2255 ,(1994) , 10.1103/PHYSREVLETT.73.2252
M Fricke, A Lorke, J. P Kotthaus, G Medeiros-Ribeiro, P. M Petroff, Shell structure and electron-electron interaction in self-assembled InAs quantum dots arXiv: Condensed Matter. ,(1996) , 10.1209/EPL/I1996-00210-X
G. Medeiros‐Ribeiro, D. Leonard, P. M. Petroff, Electron and hole energy levels in InAs self‐assembled quantum dots Applied Physics Letters. ,vol. 66, pp. 1767- 1769 ,(1995) , 10.1063/1.113361
G. Medeiros-Ribeiro, F. G. Pikus, P. M. Petroff, A. L. Efros, SINGLE-ELECTRON CHARGING AND COULOMB INTERACTION IN INAS SELF-ASSEMBLED QUANTUM DOT ARRAYS Physical Review B. ,vol. 55, pp. 1568- 1573 ,(1997) , 10.1103/PHYSREVB.55.1568