drift velocity


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drift velocity

[′drift və′läs·əd·ē]
(solid-state physics)
The average velocity of a carrier that is moving under the influence of an electric field in a semiconductor, conductor, or electron tube.
References in periodicals archive ?
with the initial and the simple boundary conditions (semi-infinite only), where [v.sup.d] means a drift velocity. Equation (1.1) allows using the Boltzmann-Matano transformation [3].
RF semiconductors are covered, including bandgap, drift velocity, resistors, diodes, and various transistors.
As I pointed out in my article, there are two velocities: the drift velocity of individual electrons, and the movement of energy through electrons so that we can have an electron exit a conductor after an electron enters the conductor, seemingly at the speed of light.
The term <<[v.sub.gj]>> refers to the void fraction weighted average drift velocity that depends on the flow geometry.
[Y.sub.s] [V.sub.th] [D.sub.AB] and Sh are soot mass concentration, thermophoretic drift velocity, particle diffusion coefficient, and Sherwood number respectively.
In the paper titled "The Vertical Ionosphere Parameters Inversion for High Frequency Surface Wave Radar," an inversion method utilizing range-Doppler spectrum of HFSWR radar is proposed to extract ionosphere information, such as the electron density, the plasma frequency of irregularities, and the plasma drift velocity of irregularities, from the ionospheric clutter.
Researchers investigate bubbling behavior in a waste glass melter, the aerodynamic response of 2D circular segments, the drift velocity of two-phase slug flow in a vertical pipe, and pipe vibrations in gas pressure reducing stations.
A few minutes later came drift velocity miscompare and longitude miscompare.
Electron drift velocity in a wire is proportional to the vector electric field [E.sub.w] in the wire, which supposedly causes the electron drift,
The equation (2) describes a relation between the gas velocity and the mixture velocity using the drift velocity [u.sub.D] and the distribution parameter [C.sub.0] [30].