Title
Resonant tunneling of holes in GaMnAs-related double- barrier structures Resonant tunneling of holes in GaMnAs-related double- barrier structures
Author
Publication type
article
Publication
New york :Kluwer academic/plenum publ ,
Subject
Physics
Source (journal)
Journal of superconductivity. - New York, N.Y.
Source (book)
PASPS Conference 2002, JUL, 2002, WURZBURG, GERMANY
Volume/pages
16(2003) :2 , p. 279-282
ISSN
0896-1107
ISI
000182711100010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Using the multiband quantum transmitting boundary method (MQTBM), hole resonant tunneling through AlGaAs/GaMnAs junctions is investigated theoretically. Because of band-edge splitting in the DMS layer, the current for holes with different spins are tuned in resonance at different biases. The bound levels of the "light" hole in the quantum well region turned out to be dominant in the tunneling channel for both "heavy" and "light" holes. The resonant tunneling structure can be used as a spin filter for holes for adjusting the Fermi energy and the thickness of the junctions.
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