Magnetic field dependence of hot-electron transport in GaAs

Hayes, J. R.; Levi, A. F. J.; Wiegmann, W.
November 1985
Applied Physics Letters;11/1/1985, Vol. 47 Issue 9, p964
Academic Journal
We have studied the magnetic field dependence of hot-electron spectra using hot-electron spectroscopy. It is shown that application of a magnetic field normal to the injection direction has a dramatic effect on the spectra whereas a magnetic field applied parallel to the injection direction has no effect. The magnetic field is shown to increase the effective transit region width of the spectrometer enabling us to deduce a scattering rate for hot electrons that is at least four times greater than would be expected considering phonon emission alone.


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