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Quantum Chemistry

Effect Of Weak Magnetic Field $sim $ 300 Gs On the Intensity of Terahertz Emission of Hot Electrons in n-Ge at Helium Temperatures

arXiv
Authors: V. M. Bondar, P. M. Tomchuk, G. A. Shepel'skii

Year

2010

Paper ID

10500

Status

Preprint

Abstract Read

~2 min

Abstract Words

117

Citations

N/A

Abstract

Experimental results of studying the effect of a weak magnetic field $sim $300 Gs on the intensity of the terahertz emission $λapprox $100 $μ$m of hot electrons in n-Ge (crystallographic orientation < 1,0,0 >) at helium temperatures $Tsim $5 K are presented and discussed. It is shown that the strong influence of this field (decrease of the emission intensity by 500÷1000{%}) is related to a decrease of the carrier concentration at weak electric fields and the appearance of the magnetoresistance at stronger fields. The longitudinal magnetoresistance becomes significant due to the anisotropy of the energy dispersion law of electrons and a strong deformation of the electron velocity distribution function by the electric field (which is beyond the framework of the diffusion approximation).

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  • Experimental results of studying the effect of a weak magnetic field sim 300 Gs on the intensity of the terahertz emission λapprox 100 μm of hot electrons in n-Ge...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.2164 [2] arXiv https://arxiv.org/abs/1011.2164 [3] Publisher https://arxiv.org/abs/1011.2164

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