Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Harley, R. T."'
Publikováno v:
Phys. Rev. B 83, 041301(R) (2011)
We measure simultaneously the in-plane electron g-factor and spin relaxation rate in a series of undoped inversion-asymmetric (001)-oriented GaAs/AlGaAs quantum wells by spin-quantum beat spectroscopy. In combination the two quantities reveal the abs
Externí odkaz:
http://arxiv.org/abs/1010.2142
Autor:
Chanyawadee, S., Lagoudakis, P. G., Harley, R. T., Charlton, M. D. B., Talapin, D. V., Lin, S.
We fabricate a highly efficient colour conversion light emitting diode consisting of surface-patterned blue emitters and semiconductor colloidal nanocrystal quantum dots (NQDs). Electrically injected carriers in the blue emitter (donor) are efficient
Externí odkaz:
http://arxiv.org/abs/0907.5152
Autor:
Eldridge, P. S., Leyland, W. J. H, Mar, J. D., Lagoudakis, P. G., Winkler, R., Karimov, O. Z., Henini, M., Taylor, D, Phillips, R. T., Harley, R T
Publikováno v:
Physical Review B82 045317 (2010)
To an electron moving in free space an electric field appears as a magnetic field which interacts with and can reorient the electron spin. In semiconductor quantum wells this spin-orbit interaction seems to offer the possibility of gate-voltage contr
Externí odkaz:
http://arxiv.org/abs/0807.4845
Measurements of spin dynamics of electrons in a degenerate two dimensional electron gas, where the Dyakonov-Perel mechanism is dominant, have been used to investigate the electron scattering time (tp*) as a function of energy near the Fermi energy. C
Externí odkaz:
http://arxiv.org/abs/0803.1230
Non-radiative optical energy transfer from a GaAs quantum well to a thin overlayer of an infrared organic semiconductor dye is unambiguously demonstrated. The dynamics of exciton transfer are studied in the time-domain using pump-probe spectroscopy a
Externí odkaz:
http://arxiv.org/abs/0711.2602
Autor:
Eldridge, P. S., Leyland, W. J. H., Lagoudakis, P. G., Karimov, O. Z., Henini, M., Taylor, D., Phillips, R. T., Harley, R. T.
We perform an all-optical spin-dynamic measurement of the Rashba spin-orbit interaction in (110)-oriented GaAs/AlGaAs quantum wells. The crystallographic direction of quantum confinement allows us to disentangle the contributions to spin-orbit coupli
Externí odkaz:
http://arxiv.org/abs/0707.4493
Autor:
Leyland, W. J. H., Harley, R. T., Henini, M., Taylor, D., Shields, A. J., Farrer, I., Ritchie, D. A.
Optical pump-probe measurements of spin-dynamics at temperatures down to 1.5K are described for a series of (001)-oriented GaAs/AlGaAs quantum well samples containing high mobility two-dimensional electron gases (2DEGs). For well widths ranging from
Externí odkaz:
http://arxiv.org/abs/0707.4180
Autor:
Leyland, W. J. H., John, G. H., Harley, R. T., Glazov, M. M., Ivchenko, E. L., Ritchie, D. A., Shields, A. J., Henini, M.
We present a detailed experimental and theoretical analysis of the spin dynamics of two-dimensional electron gases (2DEGs) in a series of n-doped GaAs/AlGaAs quantum wells. Picosecond-resolution polarized pump-probe reflection techniques were applied
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610587
Time-resolved optical measurements in (110)-oriented GaAs/AlGaAs quantum wells show a ten-fold increase of the spin-relaxation rate as a function of applied electric field from 20 to 80 kV cm-1 at 170 K and indicate a similar variation at 300 K, in a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305396
The D'yakonov-Perel' spin relaxation mechanism in n-doped GaAs/AlGaAs quantum wells (QWs) has been studied both theoretically and experimentally. The temperature dependence of the spin relaxation time has been calculated for arbitrary degeneracy of t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305260