Sergey Danilov

Ratchet effects induced by terahertz radiation in heterostructures with a lateral periodic potential (2009)

Olbrich, Peter, Ivchenko, Eougenious, Ravash, Roghaiyeh, Feil, Thomas, Danilov, Sergey, Allerdings, J., ...

We report on the observation of the Seebeck ratchet effect. The effect is measured in semiconductor heterostructures with a one-dimensional lateral potential excited by terahertz radiation. The...

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...

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...

Spin photocurrents and circular photon drag effect in (110)-grown quantum well structures (2007)

Shalygin, Vadim, Diehl, Helgi, Hoffmann, Christoph, Danilov, Sergey, Herrle, Thomas, Tarasenko, Sergey, ...

The study of spin photocurrents in (110)-grown quantum well structures is reported. The investigated effects comprise the circular photogalvanic effect and so far not observed circular photon drag...

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)-...

Picosecond Polarisation Detector for Infrared and Terahertz Radiation (2007)

Ganichev, Sergey, Danilov, Sergey, Weber, Wolfgang, Schuh, Dieter, Gerl, Christian, Wegscheider, Werner, ...

We report on a room temperature detector of infrared/terahertz laser radiation allowing to measure and characterized the radiation polarization state with picosecond time resolution.

Magneto-gyrotropic photogalvanic effect due to inter-subband absorption in (001)-grown GaAs quantum wells (2007)

Diehl, Helgi, Shalygin, V., Danilov, Sergey, Tarasenko, S., Bel'kov, V., Schuh, Dieter, ...

We report on the observation of the magneto-photogalvanic effect (MPGE) due to inter-subband transitions in (001)-oriented GaAs quantum wells. This effect is related to the gyrotropic properties of...

Pure spin currents induced by spin-dependent scattering processes in SiGe quantum well structures (2007)

Ganichev, Sergey, Danilov, Sergey, Bel'kov, V., Giglberger, Stephan, Tarasenko, S., Ivchenko, E., ...

We show that spin-dependent electron-phonon interaction in the energy relaxation of a two-dimensional electron gas results in equal and oppositely directed currents in the spin-up and spin-down...

Subnanosecond Ellipticity Detector for Laser Radiation (2007)

Ganichev, Sergey, Kiermaier, Josef, Weber, Wolfgang, Danilov, Sergey, Schuh, Dieter, Gerl, Christian, ...

A room temperature detector of terahertz laser radiation ellipticity has been developed based on the simultaneous measurements of three different photoelectric phenomena: circular photogalvanic...

Cyclotron resonance photoconductivity of a two-dimensional electron gas in HgTe quantum wells (2007)

Kvon, Z., Danilov, Sergey, Mikhailov, N., Dvoretsky, S., Ganichev, Sergey

Far-infrared cyclotron resonance photoconductivity (CRP) is investigated in HgTe quantum wells (QWs) of various widths grown on (013) oriented GaAs substrates. It is shown that CRP is caused by the...

Photogalvanic efects in HgTe quantum wells (2007)

Wittmann, Bernhard, Danilov, Sergey, Kvon, Z., Mikhailov, N., Dvoretsky, S., Ravash, Roghaiyeh, ...

We report on the observation of the terahertz radiation induced circular (CPGE) and linear (LPGE) photogalvanic effects in HgTe quantum wells. The current response is well described by the...

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...

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...

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

Weber, Wolfgang, Ganichev, Sergey, Kvon, Z, Bel'kov, V, Golub, L, 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...

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...

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...

Effect of the magnetic field on tunnel ionization of deep impurities by terahertz radiation (2004)

Danilov, Sergey, Ganichev, Sergey, Zimmermann, J., Prettl, Wilhelm

A suppression of tunnelling ionization of deep impurities in terahertz frequency electric fields by an external magnetic field is observed. It is shown that the ionization probability at external...

Magnetic field effect on tunnel ionization of deep impurities by terahertz radiation (2003)

Ganichev, Sergey, Danilov, Sergey, Sollinger, M., Zimmermann, J., Moskalenko, A., Perel, V., ...

A suppression of tunnelling ionization of deep impurities in terahertz frequency electric fields by a magnetic field is observed. It is shown that the ionization probability at external magnetic...

Transfer of spin orientation into electric current in quantum wells (2002)

Ganichev, Sergey, Ivchenko, Eougenious, Danilov, Sergey, Sollinger, M., Eroms, Jonathan, Wegscheider, Werner, ...

A monopolar spin polarization has been achieved in quantum well structures applying terahertz circularly polarized radiation. The spin polarization results in a directed motion of free carriers in...

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...

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...

Nonlinear photogalvanic effect induced by monopolar spin orientation of holes in MQWs (2001)

Ganichev, Sergey, Danilov, Sergey, Ivchenko, Eougenious, Ketterl, H., Vorobjev, L., Bichler, Max, ...

We report on the first observation of the circular photogalvanic effect (CPGE) induced by optical monopolar spin orientation of holes in p-doped quantum-well structures. It is shown that monopolar...

Conversion of spin into directed electric current in quantum wells (2001)

Ganichev, Sergey, Danilov, Sergey, Eroms, Jonathan, Wegscheider, Werner, Weiss, Dieter, Prettl, Wilhelm, ...

A nonequilibrium population of spin-up and spin-down states in quantum well structures has been achieved applying circularly polarized radiation. The spin polarization results in a directed motion of...

Konversion von Spin in einen gerichteten elektrischen Strom in Quantenfilmen (2001)

Ganichev, Sergey, Danilov, Sergey, Eroms, Jonathan, Wegscheider, Werner, Weiss, Dieter, Prettl, Wilhelm, ...

Mit Hilfe zirkular polarisierter Strahlung wurde eine Ungleichverteilung der Spinzustände in n- und p-leitenden InAs und GaAs Quantenfilmen erzeugt. Die Spinpolarisation verursacht eine gerichtete...