Annotation
In this work, we show that the use of terahertz laser radiation combined with magnetic field may be an effective tool for detection of topological surface states which is demonstrated for the case of (Bi$_{1−x}$In$_x$)2Se$_3$ solid solutions being either in topological (x < 0.05) or trivial (x > 0.06) phase. It is revealed that for the topological phase, the photoelectromagnetic effect amplitude is defined by the number of incident radiation quanta, whereas for the trivial phase, it depends on the power of a laser pulse irrespective of its wavelength.
PACS:
71.20.Nr Semiconductor compounds
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
A.V. Galeeva$^1$, S.G. Egorova$^1$, V.I. Chernichkin$^1$1, V.V. Rumyantsev$^2$, S.V. Morozov$^2$, M.E. Tamm$^3$, L.V.
Yashina$^3$, S.N. Danilov$^4$, L.I. Ryabova$^3$, D.R. Khokhlov$^{1,5}$
$^1$Faculty of Physics, M.V.Lomonosov Moscow State University, Moscow 119991, Russia
$^2$Institute for Physics of Microstructures RAS, Moscow, Russia
$^3$Faculty of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
$^4$Regensburg University, Germany
$^5$ P.N. Lebedev Physical Institute RAS, Moscow, Russia
$^1$Faculty of Physics, M.V.Lomonosov Moscow State University, Moscow 119991, Russia
$^2$Institute for Physics of Microstructures RAS, Moscow, Russia
$^3$Faculty of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
$^4$Regensburg University, Germany
$^5$ P.N. Lebedev Physical Institute RAS, Moscow, Russia