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Journal of Theoretical and Computational Studies
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EFFECT OF VARIOUS MATERIAL PARAMETERS ON THE CALCULATED VELOCITY-FIELD RELATION IN AL0.2GA0.8N AT ROOM TEMPERATURE

H. Arabshahi and A. Farzaneh

Department of Physics, Ferdowsi University of Mashhad, Mashhad, Iran
Department of Physics, Tarbiat Moallem University of Sabzevar, Iran

Abstract
The results of an ensemble Monte Carlo simulation of the steady-state electron drift velocity as a function of applied electric field in Al0.2Ga0.8N are presented. The effect of various material parameters on the calculated velocity is assessed by varying each parameter independently by ▒30It is found that both the optical phonon energy and intervalley separation energy alter the peak electron velocity. Variations in the dielectric constants and central valley effective mass have more effect upon the peak drift velocity and act to alter the threshold electric field. The combined effects of a greater central valley effective mass and a larger phonon energy in Al0.2Ga0.8N result in a greater threshold field.

Publication : J. Theor. Comput. Stud. 8 (2009) 0104 » page of Content
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Full paper : open license in format PDF (266.666 byte)
Contact : H. Arabshahi
Additional info : 5 pages, language English » accessed 14.629 times

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