Effects of the one-dimensional quantum barriers in pyramidal quantum dots
We investigated theoretically the effects of the one-dimensional barriers on the electronic states in a quantum dot grown on a nonplanar substrate. These peculiar barriers drastically modify the confined carrier wave functions and their energies. Connecting the quantum wire to the pyramidal quantum dot leads to an enhancement in the ground to first excited state separation energy and a simultaneous large reduction of the energy size sensitivity. (C) 2004 American Institute of Physics.
WOS:000221269800044
2004
84
20
4086
4088
EPFL, Swiss Fed Inst Technol, Sch Basic Sci,Inst Quantum Elect & Photon, Lab Phys Nanostruct, CH-1015 Lausanne, Switzerland. Michelini, F, EPFL, Swiss Fed Inst Technol, Sch Basic Sci,Inst Quantum Elect & Photon, Lab Phys Nanostruct, CH-1015 Lausanne, Switzerland. fabienne.michelini@epfl.ch
ISI Document Delivery No.: 818UK
Cited Reference Count: 14
Cited References:
ALTMANN SL, 1994, POINT GROUP THEORY T
ANDREEVA AD, 2001, PHYSICA E, V10, P553
BAIER MH, UNPUB
BESOMBES L, 2002, PHYS REV B, V65
DUCOMMUN Y, 2001, THESIS SWISS FEDERAL
HARTMANN A, 1999, J PHYS-CONDENS MAT, V11, P5901
HARTMANN A, 2000, PHYS REV LETT, V84, P5648
JOHNSON HT, 2002, J APPL PHYS, V92, P4653
PERRET N, 2000, PHYS REV B, V62, P5092
SANGUINETTI S, 2002, APPL PHYS LETT, V81, P613
STIER O, 1999, PHYS REV B, V59, P5688
TODA Y, 1999, PHYS REV LETT, V82, P4114
VURGAFTMAN I, 2001, J APPL PHYS 1, V89, P5815
WOJS A, 1996, PHYS REV B, V54, P5604
REVIEWED