English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/24264
Title: Electron wave-function spillover in self-assembled InAs∕InP quantum wires
Authors: Maes, J.; Hayne, M.; Sidor, Y.; Partoens, B.; Peeters, F. M.; González Díez, Yolanda; González Sotos, Luisa; Fuster, David; García Martínez, Jorge Manuel; Moshchalkov, V. V.
Keywords: Quantum wires
Magnetic fields
Electron wave-function
Issue Date: 15-Oct-2004
Publisher: American Physical Society
Citation: Physical Review B 70, 155311 (2004)
Abstract: Charge confinement in InAs∕InP self-assembled quantum wires is studied experimentally using photoluminescence in pulsed magnetic fields and theoretically using adiabatic theory within the effective-mass approximation, taking into account the strain in the samples. We show both experimentally and theoretically that, in spite of the large conduction band offset, the electron wave function is significantly spilled out of the wire in the wire height direction for thin wires. Furthermore, for a wire thickness of up to 8 monolayers, the electron spillover is inversely related to the wire height. These effects are due to the large zero point energy of the electron. As the wire becomes thicker, the decrease in confinement energy is reflected in a reduction of the electron wave-function extent.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevB.70.155311
URI: http://hdl.handle.net/10261/24264
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.70.155311
Appears in Collections:(IMM-CNM) Artículos
Files in This Item:
File Description SizeFormat 
Maes, J. et al Phys.Rev.B_70_2004.pdf169,51 kBAdobe PDFView/Open
Show full item record

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.