Zobrazeno 1 - 10
of 1 041
pro vyhledávání: '"Kossut, J."'
Autor:
Evers, E., Kazimierczuk, T., Mertens, F., Yakovlev, D. R., Karczewski, G., Wojtowicz, T., Kossut, J., Bayer, M., Greilich, A.
Publikováno v:
Phys. Rev. B 99, 045303 (2019)
Nuclear spin coherence and relaxation dynamics of all constituent isotopes of an n-doped CdTe/(Cd,Mg)Te quantum well structure are studied employing optically detected nuclear magnetic resonance. Using time-resolved pump-probe Faraday ellipticity, we
Externí odkaz:
http://arxiv.org/abs/1807.09672
Autor:
Zhukov, E. A., Kusrayev, Yu. G., Kavokin, K. V., Yakovlev, D. R., Debus, J., Schwan, A., Akimov, I. A., Karczewski, G., Wojtowicz, T., Kossut, J., Bayer, M.
Publikováno v:
Phys. Rev. B 93, 245305 (2016)
The optically induced spin polarization in (Cd,Mn)Te/(Cd,Mn,Mg)Te diluted-magnetic-semiconductor quantum wells is investigated by means of picosecond pump-probe Kerr rotation. At 1.8 K temperature, additionally to the oscillatory signals from photoex
Externí odkaz:
http://arxiv.org/abs/1605.03362
Autor:
Zhukov, E. A., Greilich, A., Yakovlev, D. R., Kavokin, K. V., Yugova, I. A., Yugov, O. A., Suter, D., Karczewski, G., Wojtowicz, T., Kossut, J., Petrov, V. V., Dolgikh, Yu. K., Pawlis, A., Bayer, M.
Publikováno v:
Phys. Rev. B 90, 085311 (2014)
Resonant cooling of different nuclear isotopes manifested in optically-induced nuclear magnetic resonances (NMR) is observed in n-doped CdTe/(Cd,Mg)Te and ZnSe/(Zn,Mg)Se quantum wells and for donor-bound electrons in ZnSe:F and GaAs epilayers. By tim
Externí odkaz:
http://arxiv.org/abs/1403.3288
Autor:
Debus, J., Dunker, D., Sapega, V. F., Yakovlev, D. R., Karczewski, G., Wojtowicz, T., Kossut, J., Bayer, M.
Publikováno v:
Phys. Rev. B 87, 205316 (2013)
Spin-flip Raman scattering of electrons and heavy-holes is studied for resonant excitation of neutral and charged excitons in a CdTe/Cd$_{0.63}$Mg$_{0.37}$Te quantum well. The spin-flip scattering is characterized by its dependence on the incident an
Externí odkaz:
http://arxiv.org/abs/1301.3108
Autor:
Langer, L., Poltavtsev, S. V., Yugova, I. A., Yakovlev, D. R., Karczewski, G., Wojtowicz, T., Kossut, J., Akimov, I. A., Bayer, M.
We report on magnetic field induced oscillations of the photon echo signal from negatively charged excitons in a CdTe/(Cd,Mg)Te semiconductor quantum well. The oscillatory signal is due to Larmor precession of the electron spin about a transverse mag
Externí odkaz:
http://arxiv.org/abs/1206.6001
Autor:
Maksimov, A. A., Yakovlev, D. R., Debus, J., Tartakovskii, I. I., Waag, A., Karczewski, G., Wojtowicz, T., Kossut, J., Bayer, M.
Publikováno v:
Phys. Rev. B 82, 035211 (2010)
The magnetization dynamics in diluted magnetic semiconductor heterostructures based on (Zn,Mn)Se and (Cd,Mn)Te has been studied experimentally by optical methods and simulated numerically. In the samples with nonhomogeneous magnetic ion distribution
Externí odkaz:
http://arxiv.org/abs/1005.4862
Autor:
Zhukov, E. A., Yakovlev, D. R., Glazov, M. M., Fokina, L., Karczewski, G., Wojtowicz, T., Kossut, J., Bayer, M.
Publikováno v:
Phys. Rev. B 81, 235320 (2010)
Optical control of the spin coherence of quantum well electrons by short laser pulses with circular or linear polarization is studied experimentally and theoretically. For that purpose the coherent electron spin dynamics in a n-doped CdTe/(Cd,Mg)Te q
Externí odkaz:
http://arxiv.org/abs/0912.2589
Autor:
Zhukov, E. A., Yakovlev, D. R., Bayer, M., Glazov, M. M., Ivchenko, E. L., Karczewski, G., Wojtowicz, T., Kossut, J.
Publikováno v:
Phys. Rev. B 76, 205310 (2007)
The mechanisms for generation of long-lived spin coherence in a two-dimensional electron gas (2DEG) have been studied experimentally by means of a picosecond pump-probe Kerr rotation technique. CdTe/(Cd,Mg)Te quantum wells with a diluted 2DEG were in
Externí odkaz:
http://arxiv.org/abs/0707.4294
Autor:
Kowalik, K., Krebs, O., Golnik, A., Suffczynski, J., Wojnar, P., Kossut, J., Gaj, J. A., Voisin, P.
Publikováno v:
Phys. Rev. B 75, 195340 (2007)
Polarization resolved photoluminescence (PL) spectroscopy of individual CdTe/ZnTe quantum dots is investigated in the presence of external in-plane magnetic field. We find that the excitonic fine structure strongly depends on the magnitude and direct
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610305
Autor:
Astakhov, G. V., Koudinov, A. V., Kavokin, K. V., Gagis, I. S., Kusrayev, Yu. G., Ossau, W., Molenkamp, L. W., Karczewski, G., Wojtowicz, T., Kossut, J.
Publikováno v:
Phys. Rev. Lett. 99, 016601 (2007)
We study exciton spin decay in the regime of strong electron-hole exchange interaction. In this regime the electron spin precession is restricted within a sector formed by the external magnetic field and the effective exchange fields triggered by ran
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609471