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Journal of Physical Studies 13(2), Article 2705 [10 pages] (2009)
DOI: https://doi.org/10.30970/jps.13.2705 POLARIZATION EFFECTS IN THE TERAHERTZ EMISSION BY HOT ELECTRONS IN MULTIVALLEY SEMICONDUCTORV. M. Bondar, P. M. Tomchuk
Institute of Physics, NAS of Ukraine |
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The article is concerned with both a theoretical and experimental study of polarization dependencies of the hot electron emission in $n$-Ge on different parameters. In particular we focus on the electric field magnitude and direction, lattice temperature and one-axis pressure value. Some peculiarities of the angular dependencies of the emission caused by a change of the scattering mechanisms are found and explained. The appearance of the angular dependencies in the case of the electric field directed symmetrically relative to the valleys positions in $n$-Ge is observed for the first time. The appropriate theory is developed.
PACS number(s): 78.45.+h