Chmyr' S.N.1, Galeeva A. V.1, Dolzhenko D. E.1, Nicorici A. V.2, Khokhlov D. R.1,3
1Department of Physics, Lomonosov Moscow State University, Moscow, Russia
2Institute of Applied Physic of Chisinau State University, Chisinau, MD-2028, Moldova
3Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
Email: galeeva@physics.msu.ru
We study photoconductivity in Pb1-xSnxTe(In) semi-insulating solid solutions under 48 GHz radiation at temperatures 4.2-50 K. We found qualitative differences between the microwave photoconductivity and previously observed photoconductivity induced by terahertz radiation with frequencies f≥ 0.6 THz. We show that in contrast to the terahertz photoconductivity the microwave photoconductivity at low temperatures has negative sign and does not manifest long-term relaxation. Possible mechanisms responsible for the microwave photoresponse are discussed. Keywords: photoconductivity, lead-tin telluride, microwave radiation.
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Дата начала обработки статистических данных - 27 января 2016 г.