Zobrazeno 1 - 10
of 62
pro vyhledávání: '"I.N. Uraltsev"'
Autor:
V. P. Kochereshko, W. Ossau, I.N. Uraltsev, Andreas Waag, Galia Pozina, G. Landwehr, Dmitri R. Yakovlev, I. A. Merkulov
Publikováno v:
Solid State Communications. 96:935-941
Circular polarized photoluminescence induced by magnetic fields in the Faraday geometry has been studied in CdTe Cd 1−x Mn x Te superlattices. An inversion of the sign of the magnetic hysteresis has been observed under excitation by nonpolarized li
Autor:
G. Landwehr, V. P. Kochereskho, W. Ossau, Dmitri R. Yakovlev, Andreas Waag, I.N. Uraltsev, I. A. Merkulov, Galia Pozina
Publikováno v:
Solid-State Electronics. 37:1081-1085
Circular polarized photoluminescence induced by magnetic fields in Faraday geometry has been used for the study of spin relaxation processes in CdTe/Cd 1− x Mn x Te short-period superlattices. The spin relaxation has been found to be effective for
Autor:
Alfred Forchel, V. P. Kochereshko, G.L. Sandler, A.M. Vasil'ev, I.N. Uraltsev, J. Straka, F. Daiminger
Publikováno v:
Superlattices and Microstructures. 13:97-100
Using various optical techniques we have investigated spin optical orientation of electrons and holes in strained layer InGaAs/GaAs quantum wells. By analyzing the spectral dependence of the depolarization effect of a transverse magnetic field we hav
Autor:
Alexey Kavokin, G. R. Posina, I.N. Uraltsev, V. P. Kochereshko, Andreas Waag, R.N. Bicknell-Tassius, Eougenious Ivchenko, Dmitri R. Yakovlev, G. Landwehr
Publikováno v:
Physical Review B. 46:7713-7722
Resonance-reflectivity data on CdTe/(Cd,Mn)Te quantum wells and superlattices are analyzed to obtain the exciton longitudinal-transverse splitting or oscillator strength as a function of the layer widths and/or the band offsets altered by externally
Autor:
S. Schmeusser, W. Ossau, Andreas Waag, Dmitri R. Yakovlev, R.N. Bicknell-Tassius, G. Landwehr, I.N. Uraltsev
Publikováno v:
Solid State Communications. 82:29-32
We report the first investigation of two-dimensional magnetic polarons formed from excitons localized in very thin nonmagnetic CdTe quantum wells confined by Cd1−xMnxTe diluted-magnetic-semiconductor barriers. Analysis of the Stokes shift of the ex
Autor:
I.N. Uraltsev, W. Ossau, R.N. Bicknell-Tassius, S. Schmeusser, G. Landwehr, Dmitri R. Yakovlev, Andreas Waag
Publikováno v:
Surface Science. 263:485-490
We report the systematic investigation of two-dimensional magnetic polarons formed from excitons localized in very thin nonmagnetic CdTe quantum wells confined by Cd 1− x Mn x Te semimagnetic barriers. Analysis of the Stokes shift of the exciton lu
Autor:
R.N. Bicknell-Tassius, V. P. Kochereshko, Dmitri R. Yakovlev, Alexey Kavokin, Galia Pozina, G. Landwehr, Andreas Waag, I.N. Uraltsev
Publikováno v:
Journal of Crystal Growth. 117:877-880
The exciton oscillator strength in CdTe/Cd 0.75 Mn 0.25 Te quantum wells and superlattices as a function of well width or period is studied by resonance exciton reflection spectroscopy. A strong increase of the oscillator strength by a factor of 30 i
Autor:
Andreas Waag, Alexey Kavokin, V. P. Kochereshko, R.N. Bicknell-Tassius, I.N. Uraltsev, Galia Pozina, Dmitri R. Yakovlev, G. Landwehr
Publikováno v:
Solid State Communications. 81:639-642
The transition from two- to three-dimensional character of the exciton wave function is demonstrated in CdTe/Cd 0.75 Mn 0.25 Te single quantum wells or superlattices by resonance reflectivity measurements of the heavy-hole exciton oscillator strength
Autor:
Andreas Waag, I.N. Uraltsev, A. Pohlmann, W. Ossau, S. Schmeusser, Ernst O. Göbel, G. Landwehr, R.N. Bicknell-Tassius, Dmitri R. Yakovlev
Publikováno v:
Journal of Crystal Growth. 117:854-858
We report the investigation of two-dimensional magnetic polarons formed from excitons localized in very thin nonmagnetic CdTe quantum wells confined by Cd1-xMnxTe semimagnetic barriers. The effective magnetic polaron formation is demonstrated in quan
Publikováno v:
Superlattices and Microstructures. 10:497-501
Optical orientation and alignment in the presence of a magnetic field have been applied to study the fine structure of excitons in type II GaAs/AlAs superlattices. We have developed a theory of polarized photoluminescence taking into account the anis