DocumentCode :
1088020
Title :
Shallow donor spectroscopy in GaxIn1-xAsyP1-y
Author :
Nicholas, Robin J. ; Davidson, A. Murray ; Sessions, Simon J. ; Stradling, R.A.
Author_Institution :
St. Andrews University, St. Andrews, Fife, Scotland
Volume :
17
Issue :
2
fYear :
1981
fDate :
2/1/1981 12:00:00 AM
Firstpage :
145
Lastpage :
149
Abstract :
Transitions between the 1s and 2p levels of shallow hydrogenic donors have been observed in two samples of high purity GaxIn1-xAsyP1-yby infrared photoconductivity and transmission. The magnetic field dependence of the shallow hydrogenic levels is found to be very accurately predicted by the use of an effective Rydberg constant R* = R_{0}(m*/m_{0}\\epsilon_{0}^{2}) where the dielectric constant (ε0) has been determined by interpolation of the values for the alloy constituents, and the effective mass m*/m_{0} is given by the linear interpolation m*/m_{0} = 0.08 - 0.039y . At high magnetic fields, the 2p+ level is found to show polaron pinning to the LO phonon associated with a "GaxIn1-xAs"-like alloy.
Keywords :
Gallium materials/devices; Infrared spectroscopy; Semiconductor device doping; Semiconductor materials measurements; Absorption; Dielectric constant; Effective mass; Impurities; Interpolation; Lattices; Magnetic field measurement; Photoconductivity; Pollution measurement; Spectroscopy;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1981.1071078
Filename :
1071078
Link To Document :
بازگشت