Zobrazeno 1 - 10
of 16 872
pro vyhledávání: '"Schneider H."'
This paper is concerned with a theoretical analysis of the behavior of optically excited spin currents in bilayer and multilayer systems of ferromagnetic and normal metals. As the propagation, control and manipulation of the spin currents created in
Externí odkaz:
http://arxiv.org/abs/2302.01472
Spin transport and spin dynamics after femtosecond laser pulse irradiation of iron (Fe) are studied using a kinetic Monte Carlo model. This model simulates spin dependent dynamics by taking into account two interaction processes during nonequilibrium
Externí odkaz:
http://arxiv.org/abs/2109.12578
Akademický článek
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Akademický článek
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Autor:
Wang, Mao, Berencén, Y., García-Hemme, E., Prucnal, S., Hübner, R., Yuan, Ye, Xu, Chi, Rebohle, L., Böttger, R., Heller, R., Schneider, H., Skorupa, W., Helm, M., Zhou, Shengqiang
Publikováno v:
Phys. Rev. Applied 10, 024054 (2018)
Presently, silicon photonics requires photodetectors that are sensitive in a broad infrared range, can operate at room temperature, and are suitable for integration with the existing Si-technology process. Here, we demonstrate strong room-temperature
Externí odkaz:
http://arxiv.org/abs/1809.00983
Autor:
König-Otto, J. C., Mittendorff, M., Winzer, T., Kadi, F., Malic, E., Knorr, A., Berger, C., de Heer, W. A., Pashkin, A., Schneider, H., Helm, M., Winnerl, S.
The Coulomb scattering dynamics in graphene in energetic proximity to the Dirac point is investigated by polarization resolved pump-probe spectroscopy and microscopic theory. Collinear Coulomb scattering rapidly thermalizes the carrier distribution i
Externí odkaz:
http://arxiv.org/abs/1805.01761
Autor:
Balaghi, L., Bussone, G., Grifone, R., Hübner, R., Grenzer, J., Ghorbani-Asl, M., Krasheninnikov, A., Schneider, H., Helm, M., Dimakis, E.
The great possibilities for strain engineering in core/shell nanowires have been explored as an alternative route to tailor the properties of binary III-V semiconductors without changing their chemical composition. In particular, we demonstrate that
Externí odkaz:
http://arxiv.org/abs/1803.10873
Autor:
Lang, D., Döring, J., Nörenberg, T., Butykai, A., Kézsmárki, I., Schneider, H., Winnerl, S., Helm, M., Kehr, S. C., Eng, L. M.
We introduce a scattering-type scanning near-field infrared microscope (s-SNIM) for the local scale near- field sample analysis and spectroscopy from room (RT) down to liquid helium (LHe) temperatures. The extension of s-SNIM down to T = 5K is in par
Externí odkaz:
http://arxiv.org/abs/1712.04812
Autor:
Piętka, B., Bobrovska, N., Stephan, D., Teich, M., Król, M., Winnerl, S., Pashkin, A., Mirek, R., Lekenta, K., Morier-Genoud, F., Schneider, H., Deveaud, B., Helm, M., Matuszewski, M., Szczytko, J.
Publikováno v:
Phys. Rev. Lett. 119, 077403 (2017)
We demonstrate the existence of a novel quasiparticle: an exciton in a semiconductor doubly dressed with two photons of different wavelengths: near infrared cavity photon and terahertz (THz) photon, with the THz coupling strength approaching the ultr
Externí odkaz:
http://arxiv.org/abs/1704.06547