, Volume 33, Issue 5, pp 578–585

D’yakonov-Shur instability in a ballistic field-effect transistor with a spatially nonuniform channel


  • M. V. Cheremisin
    • A. F. Ioffe Physicotechnical InstituteRussian Academy of Sciences
    • GES, 074
  • G. G. Samsonidze
    • A. F. Ioffe Physicotechnical InstituteRussian Academy of Sciences
    • Department of Electrical EngineeringUniversity of Maryland
The Physics of Semiconductor Devices

DOI: 10.1134/1.1187732

Cite this article as:
Cheremisin, M.V. & Samsonidze, G.G. Semiconductors (1999) 33: 578. doi:10.1134/1.1187732


The instability of a two-dimensional electronic liquid in the channel of a ballistic field-effect transistor is analyzed by investigating the energy balance. A criterion of instability is found for arbitrary boundary conditions. Using energy-balance analysis we propose a device with a high instability growth rate. The transistor possesses a spatially nonuniform channel and is analogous to a divergent channel in classical hydrodynamics. Our computed growth rate and threshold of the instability for this device agree with the computational data.

Copyright information

© American Institute of Physics 1999