DocumentCode
2604011
Title
A spin-polarized interband-current source based upon staggered-bandgap heterostructures
Author
Zhang, Weidong ; Woolard, Dwight ; Zhao, Peiji
Author_Institution
Dept. of ECE, North Carolina State Univ., Raleigh, NC
fYear
2007
fDate
2-5 Aug. 2007
Firstpage
214
Lastpage
219
Abstract
A detailed analysis is presented of the spin-splitting in an interband-resonant-tunneling diode (I-RTD). In the framework of a six-band Kane model, the escape process of the heavy-hole valence electrons through the interband channel of a staggered-bandgap heterostructure is described. Numerical simulation results demonstrate the interband current to be highly polarized and define a new I-RTD based spin-polarized source.
Keywords
constant current sources; energy gap; resonant tunnelling diodes; spin polarised transport; heavy-hole valence electrons; interband channel; interband-resonant-tunneling diode; six-band Kane model; spin-polarized source; spin-splitting; staggered-bandgap heterostructure; Electrons; Lead compounds; Magnetic confinement; Magnetic fields; Nanotechnology; Numerical simulation; Photonic band gap; Polarization; Semiconductor diodes; Tunneling; Interband tunneling; RTD; spin polarization;
fLanguage
English
Publisher
ieee
Conference_Titel
Nanotechnology, 2007. IEEE-NANO 2007. 7th IEEE Conference on
Conference_Location
Hong Kong
Print_ISBN
978-1-4244-0607-4
Electronic_ISBN
978-1-4244-0608-1
Type
conf
DOI
10.1109/NANO.2007.4601174
Filename
4601174
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