Nanostructural characterization and two-dimensional electron-gas properties in high-mobility AlGaN∕AlN∕GaN heterostructures grown on epitaxial AlN/sapphire templates

2005 ◽  
Vol 98 (6) ◽  
pp. 063713 ◽  
Author(s):  
Makoto Miyoshi ◽  
Takashi Egawa ◽  
Hiroyasu Ishikawa ◽  
Kei-Ichiro Asai ◽  
Tomohiko Shibata ◽  
...  
2007 ◽  
Vol 21 (08n09) ◽  
pp. 1579-1583 ◽  
Author(s):  
S. Moreau ◽  
O. M. Fedorych ◽  
M. L. Sadowski ◽  
M. Potemski ◽  
S. Studenikin ◽  
...  

In this paper, we study the behavior of a high mobility two dimensional electron gas under microwave irradiation by means of magneto-photoluminescence (PL) and absorption measurements. The high mobility sample investigated is a 15nm wide GaAs/AlGaAs quantum well with an electron concentration between 1-2×1011 cm -2, tunable by visible-light illumination. Structures in the microwave absorption at 40-60GHz are identified as geometrically confined magneto-plasmons.


2020 ◽  
Vol 117 (16) ◽  
pp. 162104
Author(s):  
C. B. Beauchamp ◽  
S. Dimitriadis ◽  
J. T. Nicholls ◽  
L. V. Levitin ◽  
A. J. Casey ◽  
...  

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