FAR-INFRARED INVESTIGATIONS OF BAND NON-PARABOLICITIES IN HIGHLY DOPED MULTIPLE-QUANTUM-WELL STRUCTURES

Authors
KANG SK DUMELOW T BRYANT JP PARKER TJ HARRIS JJ FOXON CT
Citation
Sk. Kang et al., FAR-INFRARED INVESTIGATIONS OF BAND NON-PARABOLICITIES IN HIGHLY DOPED MULTIPLE-QUANTUM-WELL STRUCTURES, Semiconductor science and technology, 10(10), 1995, pp. 1323-1328
Citations number
34
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Condensed Matter","Material Science
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
10
Issue
10
Year of publication
1995
Pages
1323 - 1328
Database
ISI
SICI code
0268-1242(1995)10:10<1323:FIOBNI>2.0.ZU;2-U
Abstract
Plasmons have been investigated in highly doped GaAs/Al0.2Ga0.8As mult iple quantum well structures using the far-infrared techniques of disp ersive Fourier transform spectroscopy and polarized oblique-incidence reflection spectroscopy. The plasma effective masses were obtained fro m comparison with van der Pauw measurements, and found to be considera bly enhanced over their bulk values. This enhancement has been compare d with that obtained using non-parabolicity theory. Good agreement is obtained, but the results suggest that the theory slightly underestima tes the effect.