Vassilij Belkov

Nonlinear magneto-gyrotropic photogalvanic effect (2009)

Diehl, Helgi, Shalygin, Vadim, Golub, Leonid, Tarasenko, Sergey, Danilov, Sergey, Belkov, Vassilij, ...

We report on the observation of magnetic-field-induced photocurrent in HgTe/HgCdTe quantum wells of different widths. Both the intrasubband and interband absorption of infrared/terahertz radiation in...

Tuning of structure inversion asymmetry by the delta-doping position in (001)-grown GaAs quantum wells (2009)

Lechner, Vera, Golub, Leonid, Olbrich, Peter, Stachel, Sebastian, Schuh, Dieter, Wegscheider, Werner, ...

Both structure and bulk inversion asymmetry in modulation-doped (001)-grown GaAs quantum wells were investigated employing the magnetic field induced photogalvanic effect.We demonstrate that the...

Magneto-gyrotropic photogalvanic effect and spin dephasing in (110)-grown GaAs/AlGaAs quantum well structures (2009)

Olbrich, Peter, Allerdings, Jurie, Belkov, Vassilij, Tarasenko, Sergey, Schuh, Dieter, Wegscheider, Werner, ...

We report the magnetogyrotropic photogalvanic effect(MPGE)in n-doped (110)-grown GaAs/AlGaAs quantum-well (QW) structures caused by free-carrier absorption of terahertz radiation in the presence of a...

Spin Currents in Diluted Magnetic Semiconductors (2009)

Ganichev, Sergey, Tarasenko, Sergey, Belkov, Vassilij, Olbrich, Peter, Eder, Wolfgang, Yakovlev, D., ...

We study zero-bias spin separation in (Cd,Mn)Te/(Cd,Mg)Te diluted magnetic semiconductor structures. The spin current generated by electron gas heating under terahertz radiation is converted into a...

Demonstration Of Rashba Spin Splitting In GaN-based Heterostructures (2007)

Weber, Wolfgang, Ganichev, Sergey, Seidl, Simon, Belkov, Vassilij, Golub, Leonid, Prettl, Wilhelm, ...

The circular photogalvanic effect (CPGE), induced by infrared radiation, has been observed in (0001)-oriented GaN low dimensional structures. The photocurrent changes sign upon reversing the...

Scattering Induced Spin Separation at Zero Bias (2007)

Ganichev, Sergey, Belkov, Vassilij, Tarasenko, Sergey, Danilov, Sergey, Giglberger, Stephan, Hoffmann, Christoph, ...

We show that in gyrotropic semiconductor structures spin-dependent asymmetry of electron scattering induces a spin separation which, in contrast to the spin Hall effect, does not require an electric...

Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells measured by Spin Photocurrents (2007)

Giglberger, Stephan, Golub, Leonid, Belkov, Vassilij, Danilov, Sergey, Schuh, Dieter, Gerl, Christian, ...

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 (001)-...

Zero-bias spin separation (2006)

Ganichev, Sergey, Belkov, Vassilij, Tarasenko, Sergey, Danilov, Sergey, Giglberger, Stephan, Hoffmann, Christoph, ...

The generation, manipulation and detection of spin-polarized electrons in low-dimensional semiconductors are at the heart of spintronics. Pure spin currents, that is, fluxes of magnetization without...

Electric current-induced spin orientation in quantum well structures (2006)

Ganichev, Sergey, Danilov, Sergey, Schneider, Petra, Belkov, Vassilij, Golub, Leonid, Wegscheider, Werner, ...

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...

Demonstration of Rashba spin splitting in GaN-based heterostructures (2005)

Weber, Wolfgang, Ganichev, Sergey, Kvon, Z. D., Belkov, Vassilij, Golub, Leonid, Danilov, Sergey, ...

The circular photogalvanic effect, induced by infrared radiation, has been observed in (0001)-oriented n-GaN low dimensional structures. The photocurrent changes sign upon reversing the radiation...

Experimental separation of Rashba and Dresselhaus spin-splittings in semiconductor quantum wells (2005)

Ganichev, Sergey, Schneider, Petra, Giglberger, Stephan, Wegscheider, Werner, Weiss, Dieter, Prettl, Wilhelm, ...

The Rashba effect, whose experimental access is usually masked by the Dresselhaus effect, allows manipulation of spins in semiconductor spintronics. Based on the far-infrared radiation induced...

Magneto-Gyrotropic Photogalvanic Effects in Semiconductor Quantum Wells (2005)

Belkov, Vassilij, Ganichev, Sergey, Ivchenko, Eougenious, Tarasenko, Sergey, Weber, Wolfgang, Giglberger, Stephan, ...

We show that free-carrier (Drude) absorption of both polarized and unpolarized terahertz radiation in quantum well (QW) structures causes an electric photocurrent in the presence of an in-plane...

Magneto-gyrotropic photogalvanic effects in semiconductor quantum wells (2005)

Belkov, Vassilij, Ganichev, Sergey, Ivchenko, Eougenious, Tarasenko, Sergey, Weber, Wolfgang, Giglberger, Stephan, ...

We show that free-carrier (Drude) absorption of both polarized and unpolarized terahertz radiation in quantum well (QW) structures causes an electric photocurrent in the presence of an in-plane...

Can an electric current orient spins in quantum wells? (2004)

Ganichev, Sergey, Danilov, Sergey, Schneider, Petra, Belkov, Vassilij, Golub, Leonid, Wegscheider, Werner, ...

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...

Magneto-Gyrotropic Photogalvanic Effect in Semiconductor Quantum Wells (2004)

Belkov, Vassilij, Ganichev, Sergey, Schneider, Petra, Giglberger, Stephan, Ivchenko, Eougenious, Tarasenko, Sergey, ...

A new type of infrared induced photocurrents is reported occurring in gyrotropic quantum wells in the presence of a magnetic field. The effect is caused by spin-orbit interaction and may be observed...

Experimental Separation of Rashba and Dresselhaus spin-splittings in Semiconductor Quantum Wells (2004)

Ganichev, Sergey, Belkov, Vassilij, Golub, Leonid, Ivchenko, Eougenious, Schneider, Petra, Giglberger, Stephan, ...

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...

Hole Spin-Relaxation in Quantum Wells from Saturation of Inter-Subband Absorption (2004)

Kainz, Josef, Schneider, Petra, Ganichev, Sergey, Rössler, Ulrich, Wegscheider, Werner, Weiss, Dieter, ...

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...

Spin-orbit coupling in gyrotropic quantum wells by far-infrared radiation induced spin-galvanic effect (2004)

Ganichev, Sergey, Belkov, Vassilij, Schneider, Petra, Giglberger, Stephan, Danilov, Sergey, Weber, Wolfgang, ...

The Rashba effect, whose experimental access is usually masked by the Dresselhaus effect, allows manipulation of spins in semiconductor spintronics. Based on the far-infrared radiation induced...

Experimentelle Bestimmung der Rashba- und Dresselhaus-Beiträge zur Spin-Bahn-Wechselwirkung (2004)

Giglberger, Stephan, Ganichev, Sergey, Belkov, Vassilij, Golub, Leonid, Ivchenko, Eougenious, Schneider, Petra, ...

Es wird die experimentelle Bestimmung des relativen Verhältnisses der Rashba- und Dresselhaus-Terme, durch welche die Spin-Bahn-Wechselwirkung in Halbleiter Quantentrogstrukturen beschrieben wird,...

Zirkular photogalvanischer Effekt bei Interband-Anregung in Quantentrögen (2004)

Schneider, Petra, Ganichev, Sergey, Belkov, Vassilij, Back, Christian, Oestreich, M., Rudolph, J., ...

Der zirkular photogalvanische Effekt konnte zum ersten Mal bei Interband-Anregung nachgewiesen werden. Die Messung wurde an p-leitenden (113)A MBE-gewachsenen GaAs/AlGaAs Quantentrögen...

Magneto-Gyrotropic Photogalvanic Effect in Semiconductor Quantum Wells (2003)

Belkov, Vassilij, Ganichev, Sergey, Schneider, Petra, Giglberger, Stephan, Ivchenko, Eougenious, Tarasenko, Sergey, ...

We investigate both experimentally and theoretically, the magneto-gyrotropic photogalvanic effect in zinc-blende based quantum wells with $C_{2v}$ point-group symmetry using optical excitation in the...

Resonant inversion of circular photogalvanic effect in n-doped quantum wells, (2003)

Ganichev, Sergey, Belkov, Vassilij, Schneider, Petra, Ivchenko, Eougenious, Tarasenko, Sergey, Schuh, Dieter, ...

We show that the sign of the circular photogalvanic effect can be changed by tuning the radiation frequency of circularly polarized light. Here resonant inversion of the photogalvanic effect has been...

Spin-dependent tunneling through a symmetric semiconductor barrier (2003)

Perel', V., Tarasenko, S., Yassievich, I., Ganichev, Sergey, Belkov, Vassilij, Prettl, Wilhelm

The problem of electron tunneling through a symmetric semiconductor barrier based on zinc-blende-structure material is studied. The k3 Dresselhaus terms in the effective Hamiltonian of bulk...

Spin-galvanic effect in quantum wells (2003)

Ganichev, Sergey, Ivchenko, Eougenious, Belkov, Vassilij, Tarasenko, Sergey, Sollinger, M., Schowalter, Dieter, ...

It is shown that a homogeneous nonequlibrium spin polarization in semiconductor heterostructures results in an electric current. The microscopic origin of the effect is an inherent asymmetry of...

Optical spin orientation under inter- and intra-subband transitions in QWs (2003)

Tarasenko, Sergey, Ivchenko, Eougenious, Belkov, Vassilij, Ganichev, Sergey, Schowalter, Dieter, Schneider, Petra, ...

It is shown that absorption of circularly polarized infrared radiation achieved by inter-subband and intra-subband (Drude-like) transitions results in a monopolar spin orientation of free carriers....

Spin-photocurrent in p-SiGe quantum wells under terahertz laser irradiation (2003)

Belkov, Vassilij, Ganichev, Sergey, Schneider, Petra, Schowalter, D., Rössler, Ulrich, Prettl, Wilhelm, ...

A detailed study of the circular photogalvanic effect (CPGE) in SiGe structures is presented. It is shown that the CPGE becomes possible because of the built-in asymmetry of quantum wells (QWs) in...

Monopolar Optical Orientation of Electronic Spins in Semiconductors (2003)

Tarasenko, Sergey, Ivchenko, Eougenious, Belkov, Vassilij, Ganichev, Sergey, Schowalter, Dieter, Schneider, Petra, ...

It is shown that absorption of circularly polarized infrared radiation due to intraband (Drude-like) transitions in n-type bulk semiconductors and due to intra-subband or inter-subband transitions in...

Spin-Photocurrent in p-SiGe quantum wells under terahertz laser irradiation (2003)

Belkov, Vassilij, Ganichev, Sergey, Schneider, Petra, Schowalter, D., Rössler, Ulrich, Prettl, Wilhelm, ...

A detailed study of the circular photogalvanic effect (CPGE) in SiGe structures is presented. It is shown that the CPGE becomes possible because of the built-in asymmetry of quantum wells (QWs) in...

Spin-sensitive bleaching and spin relaxation in QW's (2003)

Schneider, Petra, Ganichev, Sergey, Kainz, Josef, Rössler, Ulrich, Wegscheider, Werner, Weiss, Dieter, ...

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...

Spin galvanic effect due to optical spin orientation in n-type GaAs quantum well structures (2003)

Ganichev, Sergey, Schneider, Petra, Belkov, Vassilij, Ivchenko, Eougenious, Tarasenko, Sergey, Wegscheider, Werner, ...

Under oblique incidence of circularly polarized infrared radiation the spin-galvanic effect ~SGE! has been unambiguously observed in ~001!-grown n-type GaAs quantum well structures in the absence of...

Monopolar optical orientation of electronic spins in semiconductors (2003)

Tarasenko, Sergey, Ivchenko, Eougenious, Belkov, Vassilij, Ganichev, Sergey, Schneider, Petra, Sollinger, M., ...

It is shown that absorption of circularly polarized infrared radiation due to intraband (Drude-like) transitions in n-type bulk semiconductors and due to intra-subband or inter-subband transitions in...

Magnetfeldinduzierter photogalvanischer Effekt in III/V-Quantentrögen (2003)

Ganichev, Sergey, Belkov, Vassilij, Sollinger, M., Schneider, Petra, Tarasenko, Sergey, Ivchenko, Eougenious, ...

In (001)-orientierten n-InAs und GaAs-Quantentrögen wurde ein durch ein äußeres magnetisches Feld induzierter photogalvanischer Effekt beobachtet. Unter linear polarisierter IR- oder...

Removal of spin-degenerancy in p-SiGe quantum wells demonstrated by spin-photocurrents (2002)

Ganichev, Sergey, Rössler, Ulrich, Prettl, Wilhelm, Ivchenko, E., Belkov, Vassilij, Neumann, Richard, ...

Spin photocurrents requiring a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on circular and linear...

Removal of spin degeneracy in SiGe-based nanostructures (2002)

Ganichev, Sergey, Rössler, Ulrich, Prettl, Wilhelm, Ivchenko, Eougenious, Belkov, Vassilij, Neumann, Richard, ...

The photogalvanic effects, which require a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on the removal of...

Spin-galvanic effect (2002)

Ganichev, Sergey, Ivchenko, Eougenious, Belkov, Vassilij, Tarasenko, Sergey, Sollinger, M., Weiss, Dieter, ...

There is much recent interest in exploiting the spin of conduction electrons in semiconductor heterostructures together with their charge to realize new device concepts1. Electrical currents are...

Spin sensitive bleaching and monopolar spin orientation in quantum wells (2002)

Ganichev, Sergey, Danilov, Sergey, Belkov, Vassilij, Ivchenko, Eougenious, Bichler, Max, Wegscheider, Werner, ...

Spin-sensitive bleaching of the absorption of far-infrared radiation has been observed in p-type GaAs AlGaAs quantum well structures. The absorption of circularly polarized radiation saturates at...

Der magnetoinduzierte photogalvanische Effekt in n-GaAs/AlGaAs Quantentrögen (2002)

Sollinger, M., Ganichev, Sergey, Belkov, Vassilij, Ivchenko, Eougenious, Tarasenko, Sergey, Kalz, Franz-Peter, ...

Wir berichten über die erste Beobachtung eines magnetfeldinduzierten zirkularen photogalvanischen Effekt(Magneto-CPGE) in Quantentrogstrukturen. Die Experimente wurden bei tiefen Temperaturen, T =...

Monopolare Spinorientierung in Quantentrogstrukturen und deren Anwendung zur Bestimmung von Spinrelaxationszeiten (2002)

Ganichev, Sergey, Danilov, Sergey, Sollinger, M., Weiss, Dieter, Wegscheider, Werner, Prettl, Wilhelm, ...

Es wird gezeigt, dass eine monopolare Spinorientierung freier Ladungsträger in Quantentrögen mit Zinkblendestruktur einen elektrischen Strom verursacht, der seine Richtung bei Inversion der...

Photogalvanischer Effekt in Si/Ge-Quantentrögen (2002)

Sollinger, M., Ganichev, Sergey, Kalz, Franz-Peter, Rössler, Ulrich, Prettl, Wilhelm, Ivchenko, Eougenious, ...

In Si/Ge Quantentrogstrukturen wurden der lineare und der zirkulare photogalvanische Effekt beobachtet. Beide Effekte treten bei Infrarotbestrahlung von (001)- und (113)-orientierten p-Si/Si1-xGex...

Magnetfeldinduzierter zirkularer photogalvanischer Effekt in InAs Quantentrögen (2001)

Ganichev, Sergey, Belkov, Vassilij, Sollinger, M., Kalz, Franz-Peter, Weiss, Dieter, Eroms, Jonathan, ...

In (001)-orientierten n-InAs Quantentrögen wurde ein durch ein äußeres magnetisches Feld induzierter zirkularer photogalvanischer Effekt beobachtet. Bei FIR-Bestrahlung senkrecht zu Quantentrog...

Microwave induced patterns in n-GaAs and their photoluminescence imaging (2000)

Belkov, Vassilij, Hirschinger, J., Schowalter, Dieter, Niedernostheide, F. J., Ganichev, Sergey, Prettl, Wilhelm, ...

Using the technique of photoluminescence imaging, self-organized patterns of high-electron density in homogeneous n-GaAs layers under homogeneous microwave irradiation are studied. The structures are...

Pattern Formation in Semiconductors (1999)

Belkov, Vassilij, Hirschinger, J., Niedernostheide, F., Ganichev, Sergey, Prettl, Wilhelm, Novák, V.

In semiconductors, nonlinear generation and recombination processes of free carriers and nonlinear charge transport can give rise to non-equilibrium phase transitions. At low temperatures, the basic...

Stoßionisationsinduzierte Strukturbildung in Halbleitern mittels Mikrowellen (1999)

Hirschinger, J., Schowalter, Dieter, Belkov, Vassilij, Novak, V., Ganichev, Sergey, ...

In gering dotierten Halbleiterschichten kann bei elektrischen Feldern von wenigen V/cm ein Nichtgleichgewichtsphasenübergang von einem niedrigleitenden in einen hochleitenden Zustand beobachtet...