144 citations · 1.2k across the 27 of their papers we have counts for
27 papers
Photon Drag Effect in (BiSb)Te Three Dimensional Topological Insulators
H. Plank, L. E. Golub, S. Bauer +10
We report on the observation of a terahertz radiation induced photon drag effect in epitaxially grown - and -type (BiSb)Te three dimensional topolog…
Helicity sensitive terahertz radiation detection by dual-grating-gate high electron mobility transistors
P. Faltermeier, P. Olbrich, W. Probst +5
We report on the observation of a radiation helicity sensitive photocurrent excited by terahertz (THz) radiation in dual-grating-gate (DGG) InAlAs/InGaAs/InAlAs/InP high electron m…
Cyclotron Resonance Assisted Photocurrents in Surface States of a 3D Topological Insulator Based on a Strained High Mobility HgTe Film
K. -M. Dantscher, D. A. Kozlov, P. Olbrich +12
We report on the observation of cyclotron resonance induced photocurrents, excited by continuous wave terahertz radiation, in a 3D topological insulator (TI) based on an 80 nm stra…
Quantum Oscillations of Photocurrents in HgTe Quantum Wells with Dirac and Parabolic Dispersions
C. Zoth, P. Olbrich, P. Vierling +10
We report on the observation of magneto-oscillations of terahertz radiation induced photocurrent in HgTe/HgCdTe quantum wells (QWs) of different widths, which are characterized by…
Room temperature high frequency transport of Dirac fermions in epitaxially grown Sb_2Te_3 based topological insulators
P. Olbrich, L. E. Golub, T. Herrmann +11
We report on the observation of photogalvanic effects in epitaxially grown Sb_2Te_3 three-dimensional (3D) topological insulators (TI). We show that asymmetric scattering of Dirac…
Probing of electromagnetic fields on atomic scale by photoelectric phenomena in graphene
Peter Olbrich, Christoph Drexler, Leonid E. Golub +8
We report on the observation of the reststrahl band assisted photocurrents in epitaxial graphene on SiC excited by infrared radiation. The peculiar spectral dependence for frequenc…