82 citations · 297 across the 8 of their papers we have counts for
8 papers
Giant ratchet magneto-photocurrent in graphene lateral superlattices
S. Hubmann, V. V. Bel'kov, L. E. Golub +5
We report on the observation of the magnetic quantum ratchet effect in graphene with a lateral dual-grating top gate (DGG) superlattice. We show that the THz ratchet current exhibi…
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…
Gate-controlled Persistent Spin Helix State in Materials with Strong Spin-Orbit Interaction
M. Kohda, V. Lechner, Y. Kunihashi +10
In layered semiconductors with spin-orbit interaction (SOI) a persistent spin helix (PSH) state with suppressed spin relaxation is expected if the strengths of the Rashba and Dress…
Spin and orbital mechanisms of the magneto-gyrotropic photogalvanic effects in GaAs/AlGaAs quantum well structures
V. Lechner, L. E. Golub, F. Lomakina +12
We report on the study of the linear and circular magneto-gyrotropic photogalvanic effect (MPGE) in GaAs/AlGaAs quantum well structures. Using the fact that in such structures the…
Quantum ratchet effects induced by terahertz radiation in GaN-based two-dimensional structures
W. Weber, L. E. Golub, S. N. Danilov +10
Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to rep…
Demonstration of Rashba spin splitting in GaN-based heterostructures
W. Weber, S. D. Ganichev, Z. D. Kvon +7
The circular photogalvanic effect (CPGE), induced by infrared radiation, has been observed in (0001)-oriented GaN quantum well (QW) structures. The photocurrent changes sign upon r…