Zobrazeno 1 - 10
of 1 099
pro vyhledávání: '"Oestreich, M"'
Publikováno v:
Phys. Rev. B 97, 081403 (2018)
We report on the nonequilibrium spin noise of a single InGaAs quantum dot charged by a single hole under strong driving by a linearly polarized probe light field. The spectral dependency of the spin noise power evidences a homogeneous broadening and
Externí odkaz:
http://arxiv.org/abs/1708.01245
We combine extensive precision measurements of the optically detected spin dynamics and magneto-transport measurements in a contiguous set of n-doped bulk GaAs structures in order to unambiguously unravel the intriguing but complex contributions to t
Externí odkaz:
http://arxiv.org/abs/1706.00615
We investigate the intrinsic spin dynamics of electrons bound to Al impurities in bulk ZnO by optical spin noise spectroscopy. Spin noise spectroscopy enables us to investigate the longitudinal and transverse spin relaxation time with respect to nucl
Externí odkaz:
http://arxiv.org/abs/1209.5667
Publikováno v:
Phys. Rev. B 86, 165301 (2012)
We study the optical orientation of electron spins in GaAs/AlGaAs quantum wells for excitation in the growth direction and for in-plane excitation. Time- and polarization-resolved photoluminescence excitation measurements show, for resonant excitatio
Externí odkaz:
http://arxiv.org/abs/1202.2040
Autor:
Dahbashi, R., Hübner, J., Berski, F., Wiegand, J., Marie, X., Pierz, K., Schumacher, H. W., Oestreich, M.
Publikováno v:
Appl. Phys. Lett. 100, 031906 (2012)
We measure the spin dephasing of holes localized in self-assembled (InGa)As quantum dots by spin noise spectroscopy. The localized holes show a distinct hyperfine interaction with the nuclear spin bath despite the p-type symmetry of the valence band
Externí odkaz:
http://arxiv.org/abs/1109.0610
Publikováno v:
Phys. Rev. A 84, 043851 (2011)
High sensitivity Faraday rotation spectroscopy is used to measure the fluctuating magnetization noise of non-interacting rubidium atoms under resonant and non-resonant optical probing conditions. The spin noise frequency spectra in dependence on the
Externí odkaz:
http://arxiv.org/abs/1108.0591
Autor:
Hübner, J., Kunz, S., Oertel, S., Schuh, D., Pochwała, M., Duc, H. T., Förstner, J., Meier, T., Oestreich, M.
We demonstrate by spin quantum beat spectroscopy that in undoped symmetric (110)-oriented GaAs/AlGaAs single quantum wells even a symmetric spatial envelope wavefunction gives rise to an asymmetric in-plane electron Land\'e-g-factor. The anisotropy i
Externí odkaz:
http://arxiv.org/abs/1104.1360
We exploit the influence of the Coulomb interaction between electrons and holes on the electron spin relaxation in a (110)-GaAs quantum well to unveil excitonic signatures within the many particle electron-hole system. The temperature dependent time-
Externí odkaz:
http://arxiv.org/abs/1103.2474
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
Publikováno v:
Physica E 43, 569 (2010)
Semiconductor spin noise spectroscopy (SNS) has emerged as a unique experimental tool that utilizes spin fluctuations to provide profound insight into undisturbed spin dynamics in doped semiconductors and semiconductor nanostructures. The technique m
Externí odkaz:
http://arxiv.org/abs/1008.2191