Zobrazeno 1 - 10
of 13
pro vyhledávání: '"A. Yu. Sivachenko"'
Publikováno v:
International Journal of Modern Physics B. 21:1563-1567
We consider eigenstates and magneto-optical transitions of free and donor-bound spin-singlet and spin-triplet charged magnetoexcitons in quasi-two-dimensional quantum wells. We show that the bright singlet state remains always bound while spin-triple
Autor:
Andreas Waag, Nikolai A. Gippius, Alexander B. Dzyubenko, W. Ossau, N. Miura, Dmitri R. Yakovlev, G. V. Astakhov, Scott A. Crooker, A. Yu. Sivachenko
Publikováno v:
physica status solidi (b). 227:353-363
Singlet and triplet states of negatively charged excitons (trions) in ZnSe/(Zn,Be,Mg)Se quantum wells have been studied by means of photoluminescence in pulsed magnetic fields up to 50 T. Singlet state binding energies, measured for different well wi
Autor:
H. A. Nickel, Joseph G. Tischler, B. D. McCombe, Andrey Yu. Sivachenko, B. A. Weinstein, R. J. Chen, Alexander B. Dzyubenko
Publikováno v:
Acta Physica Polonica A. 98:241-257
We review recent experimental advances by the Buffalo group in performing far-infrared magnetospectroscopy under he tuning of applied high hydrostatic pressure. Experiments are reported for the effects of pressure on Si donors in modulation doped GaA
Publikováno v:
The Journal of Chemical Physics. 112:4699-4706
The previously developed level crossing model has been employed to study the relaxation of transmission spectra of hydrogen-bonded species. We investigated the spectral transformation after the saturation of intramolecular vibrational transition by a
Autor:
A Yu Sivachenko, Anatoly I. Burshtein
Publikováno v:
Journal of Physics: Condensed Matter. 12:A173-A179
The level-crossing model is applied to pump-probe spectroscopy of the intramolecular vibration of hydrogen-bonded HDO molecules dissolved in H2 O. The parameters of the model are extracted from experimental data. It is shown that within the linear ap
Publikováno v:
The Journal of Chemical Physics. 110:1931-1941
The saturation kinetics of the H-bond absorption spectra in a strong laser field is described as a level-crossing problem with diffusional motion along the reaction coordinate. The full analogy with kinetics and rate of electron transfer reactions is
Publikováno v:
AIP Conference Proceedings.
We theoretically consider binding of quasi‐2D charged excitons X− on isolated donor ions D+ located at various distances from the quantum well. We establish how many different singlet Xs− and triplet Xt− bound states a donor ion D+ can suppor
Autor:
T. Yeo, Athos Petrou, B. D. McCombe, H. A. Nickel, A. Yu. Sivachenko, C. J. Meining, T. Sander, Alexander B. Dzyubenko
Publikováno v:
Optical Properties of 2D Systems with Interacting Electrons ISBN: 9781402015496
States of charged magnetoexcitons in quasi-two-dimensional systems are investigated. The effect of excess electrons on internal transitions of negatively charged excitons X− in GaAs quantum wells is studied experimentally by optically detected reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6061d1ee7636dd56581a92d84a95561
https://doi.org/10.1007/978-94-010-0078-9_3
https://doi.org/10.1007/978-94-010-0078-9_3
Autor:
B. D. McCombe, A. Yu. Sivachenko, Vladimir Umansky, Alexander B. Dzyubenko, William J. Schaff, H. A. Nickel, T. Yeo, Athos Petrou
Publikováno v:
Physical Review Letters. 88
Spin-singlet and spin-triplet internal transitions of quasi-two-dimensional, negatively charged magneto-excitons (X-) and their evolution with excess electron density have been studied in GaAs/AlGaAs quantum-wells by optically detected resonance (ODR
Publikováno v:
Physical Review A. 64
Light propagation in a photonic crystal infiltrated with polarizable molecules is considered. We demonstrate that the interplay between the spatial dispersion caused by Bragg diffraction and polaritonic frequency dispersion gives rise to novel propag