Nonlinear magneto-gyrotropic photogalvanic effect (2009)
Diehl, H., Shalygin, V. A., Golub, L. E., Tarasenko, S. A., Danilov, S. N., Bel'kov, V. V., ...
We report on the observation of nonlinear magneto-gyrotropic photogalvanic effect in HgTe/HgCdTe quantum wells. The interband absorption of mid-infrared radiation as well as the intrasubband...
Semiclassical theory of the photogalvanic effect in non-centrosymmetric systems (2009)
Deyo, E., Golub, L. E., Ivchenko, E. L., Spivak, B.
We develop a semiclassical theory of nonlinear transport and the photogalvanic effect in non-centrosymmetric media. We show that terms in semiclassical kinetic equations for electron motion which are...
Lechner, V., Golub, L. E., Olbrich, P., Stachel, S., Schuh, D., Wegscheider, W., ...
Structure and bulk inversion asymmetry in doped (001)-grown GaAs quantum wells is investigated by applying the magnetic field induced photogalvanic effect. We demonstrate that the structure inversion...
Spin-orbit interaction and weak localization in heterostructures (2009)
Theory of weak localization in two-dimensional high-mobility semiconductor systems is developed with allowance for the spin-orbit interaction. The obtained expressions for anomalous magnetoresistance...
Danilov, S. N., Wittmann, B., Olbrich, P., Eder, W., Prettl, W., Golub, L. E., ...
We report a fast, room temperature detection scheme for the polarization ellipticity of laser radiation, with a bandwidth that stretches from the infrared to the terahertz range. The device consists...
Resonant circular photogalvanic effect in GaN/AlGaN heterojunctions (2008)
Wittmann, B., Golub, L. E., Danilov, S. N., Karch, J., Reitmaier, C., Kvon, Z. D., ...
The resonant circular photogalvanic effect is observed in wurtzite (0001)-oriented GaN low-dimensional structures excited by infrared radiation. The current is induced by angular momentum transfer of...
Weber, W., Golub, L. E., Danilov, S. N., Karch, J., Reitmaier, C., Wittmann, B., ...
Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to represent linear...
Electric field control of spin-orbit splittings in GaAs/AlGaAs coupled quantum wells (2008)
Electron spin dynamics is investigated in n-i-n GaAs/AlGaAs coupled quantum wells. The electron spin dephasing time is measured as a function of an external electrical bias under resonant excitation...
Weber, W., Golub, L. E., Danilov, S. N., Karch, J., Reitmaier, C., Wittmann, B., ...
Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to represent linear...
Weber, W, Golub, L E, Danilov, S N, Karch, J, Reitmaier, C, Wittmann, B, ...
Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to represent linear...
Resonant Circular Photogalvanic Effect in GaN/AlGaN Heterojunctions (2008)
Wittmann, B, Golub, L E, Danilov, S N, Karch, J, Reitmaier, C, Kvon, Z D, ...
The resonant circular photogalvanic effect is observed in wurtzite (0001)-oriented GaN low-dimensional structures excited by infrared radiation. The current is induced by angular-momentum transfer of...
Quantum and classical multiple scattering effects in spin dynamics of cavity polaritons (2007)
The transport properties of exciton-polaritons are studied with allowance for their polarization. Both classical multiple scattering effects and quantum effects such as weak localization are taken...
Magneto-gyrotropic photogalvanic effects in GaN/AlGaN two-dimensional systems (2007)
Weber, W., Seidl, S., Danilov, S. N., Prettl, W., Bel'kov, V. V., Golub, L. E., ...
The magneto-gyrotropic photogalvanic and spin-galvanic effects are observed in (0001)-oriented GaN/AlGaN heterojunctions excited by terahertz radiation. We show that free-carrier absorption of...
Giglberger, S., Golub, L. E., Bel'kov, V. V., Danilov, S. N., Schuh, D., Gerl, Ch., ...
The spin-galvanic effect and the circular photogalvanic effect induced by terahertz radiation are applied to determine the relative strengths of Rashba and Dresselhaus band spin-splitting in...
Interplay of Rashba and Dresselhaus spin splittings in 2D weak localization (2006)
The effects of structural (Rashba) and bulk (Dresselhaus) spin-orbit interaction terms on the low-field magnetoresistance are investigated in high-quality two dimensional systems. The weak...
Spin and valley-orbit splittings in SiGe/Si heterostructures (2006)
Nestoklon, M. O., Golub, L. E., Ivchenko, E. L.
Spin and valley-orbit splittings are calculated in SiGe/Si/SiGe quantum wells (QWs) by using the tight-binding approach. In accordance with the symmetry considerations an existence of spin splitting...
Observation of Spin Relaxation Anisotropy in Semiconductor Quantum Wells (2006)
Averkiev, N. S., Golub, L. E., Gurevich, A. S., Evtikhiev, V. P., Kochereshko, V. P., Platonov, A. V., ...
Spin relaxation of two-dimensional electrons in asymmetrical (001) AlGaAs quantum wells are measured by means of Hanle effect. Three different spin relaxation times for spins oriented along [110],...
Demonstration of Rashba spin splitting in GaN-based heterostructures (2005)
Weber, W., Ganichev, S. D., Kvon, Z. D., Bel'kov, V. V., Golub, L. E., Danilov, S. N., ...
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 reversing the...
Weak antilocalization in high-mobility two-dimensional systems (2004)
Theory of weak antilocalization is developed for high-mobility two-dimensional systems. Spin-orbit interaction of Rashba and Dresselhaus types is taken into account. Anomalous magnetoresistance is...
Can an electric current orient spins in quantum wells? (2004)
Ganichev, S. D., Danilov, S. N., Schneider, Petra, Bel'kov, V. V., Golub, L. E., Wegscheider, W., ...
A longstanding theoretical prediction is the orientation of spins by an electrical current flowing through low-dimensional carrier systems of sufficiently low crystallographic symmetry. Here we show...
Spin relaxation times of 2D holes from spin sensitive bleaching of inter-subband absorption (2004)
Schneider, Petra, Kainz, J., Ganichev, S. D., Bel'kov, V. V., Danilov, S. N., Glazov, M. M., ...
We present spin relaxation times of 2D holes obtained by means of spin sensitive bleaching of the absorption of infrared radiation in p-type GaAs/AlGaAs quantum wells (QWs). It is shown that the...
Weak antilocalization in quantum wells in tilted magnetic fields (2003)
Minkov, G. M., Germanenko, A. V., Rut, O. E., Sherstobitov, A. A., Golub, L. E., Zvonkov, B. N., ...
Weak antilocalization is studied in an InGaAs quantum well. Anomalous magnetoresistance is measured and described theoretically in fields perpendicular, tilted and parallel to the quantum well plane....
Spin Splitting in Symmetrical SiGe Quantum Wells (2003)
Spin splitting of conduction electron states has been analyzed for all possible point symmetries of SiGe quantum well structures. A particular attention is paid to removal of spin degeneracy caused...
Circular Photogalvanic Effect at Inter-Band Excitation in Semiconductor Quantum Wells (2003)
Bel'kov, V. V., Ganichev, S. D., Schneider, Petra, Back, C., Oestereich, M., Rudolph, J., ...
We observed a circular photogalvanic effect (CPGE) in GaAs quantum wells at inter-band excitation. The spectral dependence of the CPGE is measured together with that of the polarization degree of the...
Electron and Hole Spin Splitting and Photogalvanic Effect in Quantum Wells (2003)
A theory of the circular photogalvanic effect caused by spin splitting in quantum wells is developed. Direct interband transitions between the hole and electron size-quantized subbands are...
Ganichev, S. D., Bel'kov, V. V., Golub, L. E., Ivchenko, E. L., Schneider, Petra, Giglberger, S., ...
The relative strengths of Rashba and Dresselhaus terms describing the spin-orbit coupling in semiconductor quantum well (QW) structures are extracted from photocurrent measurements on n-type InAs QWs...
Spin-sensitive Bleaching and Spin-Relaxation in QW's (2003)
Schneider, Petra, Ganichev, S. D., Kainz, J., Roessler, U., Wegscheider, W., Weiss, D., ...
Spin-sensitive saturation of absorption of infrared radiation has been investigated in p-type GaAs QWs. It is shown that the absorption saturation of circularly polarized radiation is mostly...
Interface-Induced Electron Spin Splitting in SiGe Heterostructures (2003)
Spin splitting of conduction electron states has been analyzed for all possible point symmetries of SiGe quantum well structures. A particular attention is paid to removal of spin degeneracy caused...
Spin Splitting Induced Photogalvanic Effect in Quantum Wells (2002)
A theory of the circular photogalvanic effect caused by spin splitting in quantum wells is developed. Direct interband transitions between the hole and electron size-quantized subbands are...
We present calculations of the spin and phase relaxation rates in GaAs/AlGaAs $p$-type quantum wells. These rates are used to derive the temperature dependence of the weak-localization correction to...
Spin Relaxation Anisotropy in Two-Dimensional Semiconductor Systems (2002)
Averkiev, N. S., Golub, L. E., Willander, M.
Spin relaxation is investigated theoretically in two-dimensional systems. Various semiconductor structures of both n- and p-types are studied in detail. The most important spin relaxation mechanisms...
Anomalous Magnetoresistance in Multy-Level 2D Systems (2002)
Averkiev, N. S., Golub, L. E., Pikus, G. E.
A weak localization is a quantum interference of waves propagating through the closed trajectory in the opposite directions. This interference may be destroyed by different wave phase breaking...
Averkiev, N. S., Golub, L. E., Tarasenko, S. A.
Shubnikov-de Haas conductivity oscillations are calculated taking into account intensive intersubband transitions between levels of size quantizatition in a quantum well and compared with anomalous...
Temperature Emerging of Combination Frequencies in Quasi-2D Shubnikov-de Haas Effect (2002)
Averkiev, N. S., Golub, L. E., Tarasenko, S. A.
The theory of the Shubnikov-de Haas effect is presented for quasi-2D systems when several subbands of size quantization are occupied. The temperature behavior of oscillation spectrum is considered....
Electron Spin Relaxation in Zinc-Blende Heterostructures (2002)
Averkiev, N. S., Golub, L. E., Willander, M.
Spin relaxation in-plane anisotropy is predicted for heterostructures based on zinc-blende semiconductors. It is shown that it manifests itself especially brightly if the two spin relaxation...
Averkiev, N. S., Golub, L. E., Tarasenko, S. A., Willander, M.
The theory of weak localization is presented for quasi-2D systems where several sub- bands of size quantization are occupied. The weak-localization correction to conductivity is shown to depend...
Giant Spin Relaxation Anisotropy in Zinc-Blende Heterostructures (2001)
Spin relaxation in-plane anisotropy is predicted for heterostructures based on zinc-blende semiconductors. It is shown that it manifests itself especially brightly if the two spin relaxation...
Effect of intersubband scattering on weak localization in 2D systems (2001)
Averkiev, N. S., Golub, L. E., Tarasenko, S. A., Willander, M.
The theory of weak localization is generalized for multilevel 2D systems taking into account intersubband scattering. It is shown that weak intersubband scattering which is negligible in a classical...
Spin relaxation in asymmetrical heterostructures (2000)
Averkiev, N. S., Golub, L. E., Willander, M.
Electron spin relaxation caused by the D'yakonov-Perel' mechanism is investigated theoretically in asymmetrical A$_3$B$_5$ heterostructures. The total spin relaxation anisotropy is demonstrated for a...
Weak localisation in AlGaAs/GaAs p-type quantum wells (1999)
Pedersen, S., Sorensen, C. B., Kristensen, A., Lindelof, P. E., Golub, L. E., Averkiev, N. S.
We have for the first time experimentally investigated the weak localisation magnetoresistance in a AlGaAs/GaAs p-type quantum well. The peculiarity of such systems is that spin-orbit interaction is...