Nonlinear regime of the current instability in a ballistic field effect transistor

Details Nonlinear regime of the current instability in a ballistic field effect transistor Nonlinear regime of the current instability in a ballistic field effect transistor

2001-10-08

arxiv.org/abs/cond-mat/0110137v1

Phys.Rev.B, 65, 085301, 2002

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures, submitted to Phys.Rev.B

Scientific paper

10.1103/PhysRevB.65.085301

The strongly nonlinear regime of Dyakonov-Shur instability is studied analytically and by computer simulations. The instability leads to high-amplitude stationary oscillations caused by shock wave formation in the FET channel. The numerically found shape and speed of the shock waves are well described in terms of the conventional hydrodynamics. The amplitude of stationary oscillations is determined.

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