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Magnetic-field-induced terahertz photogeneration in PbTe(Ga)

Galeeva, A. V. ; Egorova, S. G. ; Chernichkin, V. I. ; Ryabova, L. I. ; Danilov, S. N. ; Nicorici, A. V. ; Khokhlov, D. R.



Abstract

It has been shown that a magnetic field in PbTe(Ga) single crystals induces the appearance of a positive photoresponse in the terahertz spectral range. Nonequilibrium charge carriers are generated from states located against the background of the continuum of the conduction band near the quasi-Fermi level. The density of states on the quasi- Fermi level is a critical parameter responsible for the process of generation.


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