Zobrazeno 1 - 10
of 1 249
pro vyhledávání: '"CIBERT, J."'
Publikováno v:
Phys. Rev. B 103, 245304 (2021)
Starting from the numerical solution of the 6-band \textbf{k.p} description of a lattice-mismatched ellipsoidal quantum dot situated inside a nanowire, including a spin Zeeman effect with values appropriate to a dilute magnetic semiconductor, we prop
Externí odkaz:
http://arxiv.org/abs/2008.01111
Autor:
Rueda-Fonseca, P., Orrù, M., Bellet-Amalric, E., Robin, E., Hertog, M. Den, Genuist, Y., André, R., Tatarenko, S., Cibert, J.
Publikováno v:
J. Appl. Phys. 119, 164303 (2016)
With ZnTe as an example, we use two different methods to unravel the characteristics of the growth of nanowires by gold-catalyzed molecular beam epitaxy at low temperature. In the first approach, CdTe insertions have been used as markers, and the nan
Externí odkaz:
http://arxiv.org/abs/1603.09566
Autor:
Pacuski, W., Suffczynski, J., Osewski, P., Kossacki, P., Golnik, A., Gaj, J. A., Deparis, C., Morhain, C., Chikoidze, E., Dumont, Y., Ferrand, D., Cibert, J., Dietl, T.
Publikováno v:
Phys. Rev. B 84, 035214 (2011)
This work presents results of near-band gap magnetooptical studies on (Zn,Mn)O epitaxial layers. We observe excitonic transitions in reflectivity and photoluminescence, that shift towards higher energies when the Mn concentration increases and split
Externí odkaz:
http://arxiv.org/abs/1105.2079
Autor:
Tardif, S., Cherifi, S., Jamet, M., Devillers, T., Barski, A., Schmitz, D., Darowski, N., Thakur, P., Cezar, J. C., Brookes, N. B., Mattana, R., Cibert, J.
Publikováno v:
APPLIED PHYSICS LETTERS 97, 062501 (2010)
We report on the exchange biasing of self-assembled ferromagnetic GeMn nanocolumns by GeMn-oxide caps. The x-ray absorption spectroscopy analysis of this surface oxide shows a multiplet fine structure that is typical of the Mn2+ valence state in MnO.
Externí odkaz:
http://arxiv.org/abs/1008.2872
A hight degree of spin polarization is achieved for a Mn atom localized in a semiconductor quantum dot using quasi-resonant optical excitation at zero magnetic field. Optically created spin polarized carriers generate an energy splitting of the Mn sp
Externí odkaz:
http://arxiv.org/abs/0811.2165
Autor:
Pacuski, W., Kossacki, P., Ferrand, D., Golnik, A., Cibert, J., Wegscheider, M., Navarro-Quezada, A., Bonanni, A., Kiecana, M., Sawicki, M., Dietl, T.
Publikováno v:
Phys. Rev. Lett. 100, 037204 (2008)
A direct observation of the giant Zeeman splitting of the free excitons in (Ga,Fe)N is reported. The magnetooptical and magnetization data imply the ferromagnetic sign and a reduced magnitude of the effective p-d exchange energy governing the interac
Externí odkaz:
http://arxiv.org/abs/0708.3296
Autor:
Pacuski, W., Ferrand, D., Cibert, J., Gaj, J. A., Golnik, A., Kossacki, P., Marcet, S., Sarigiannidou, E., Mariette, H.
Publikováno v:
Phys. Rev. B 76, 165304 (2007)
We describe a direct observation of the excitonic giant Zeeman splitting in (Ga,Mn)N, a wide-gap III-V diluted magnetic semiconductor. Reflectivity and absorption spectra measured at low temperatures display the A and B excitons, with a shift under m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703041
Publikováno v:
Phys. Rev. B 73, 035214 (2006)
We present a spectroscopic study of (Zn,Co)O layers grown by molecular beam epitaxy on sapphire substrates. (Zn,Co)O is commonly considered as a promising candidate for being a Diluted Magnetic Semiconductor ferromagnetic at room temperature. We perf
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508308
Autor:
Maslana, W., Kossacki, P., Plochocka, P., Golnik, A., Gaj, J. A., Ferrand, D., Bertolini, M., Tatarenko, S., Cibert, J.
Microphotoluminescence mapping experiments were performed on a modulation doped (Cd,Mn)Te quantum well exhibiting carrier induced ferromagnetism. The zero field splitting that reveals the presence of a spontaneous magnetization in the low-temperature
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405657
Autor:
Kossacki, P., Boukari, H., Bertolini, M., Ferrand, D., Cibert, J., Tatarenko, S., Gaj, J. A., Deveaud, B., Ciulin, V., Potemski, M.
Publikováno v:
Phys. Rev. B 70, 195337 (2004)
The spectroscopic properties of a spin polarized two-dimensional hole gas are studied in modulation doped (Cd,Mn)Te quantum wells. The giant Zeeman effect induces a significant spin splitting even at very small values of the applied field. Several me
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404490