Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Brächer T"'
Autor:
Wang, Q., Kewenig, M., Schneider, M., Verba, R., Kohl, F., Heinz, B., Geilen, M., Mohseni, M., Lägel, B., Ciubotaru, F., Adelmann, C., Dubs, C., Cotofana, S. D., Dobrovolskiy, O. V., Brächer, T., Pirro, P., Chumak, A. V.
Publikováno v:
Nature Electronics 2020
Magnons, the quanta of spin waves, could be used to encode information in beyond-Moore computing applications, and magnonic device components, including logic gates, transistors, and units for non-Boolean computing, have already been developed. Magno
Externí odkaz:
http://arxiv.org/abs/1905.12353
Autor:
Dobrovolskiy, O. V., Sachser, R., Brächer, T., Fischer, T., Kruglyak, V. V., Vovk, R. V., Shklovskij, V. A., Huth, M., Hillebrands, B., Chumak, A. V.
Ferromagnetism and superconductivity are most fundamental phenomena in condensed matter physics. Entailing opposite spin orders, they share an important conceptual similarity: Disturbances in magnetic ordering in magnetic materials can propagate in t
Externí odkaz:
http://arxiv.org/abs/1901.06156
Autor:
Wang, Q., Heinz, B., Verba, R., Kewenig, M., Pirro, P., Schneider, M., Meyer, T., Lägel, B., Dubs, C., Brächer, T., Chumak, A. V.
Publikováno v:
Phys. Rev. Lett. 122, 247202 (2019)
Spin waves are investigated in Yttrium Iron Garnet (YIG) waveguides with a thickness of 39 nm and widths ranging down to 50 nm, i.e., with aspect ratios thickness over width approaching unity, using Brillouin Light Scattering spectroscopy. The experi
Externí odkaz:
http://arxiv.org/abs/1807.01358
Autor:
Meyer, T., Brächer, T., Heussner, F., Serga, A. A., Naganuma, H., Mukaiyama, K., Oogane, M., Ando, Y., Hillebrands, B., Pirro, P.
We present a time-resolved study of the magnetization dynamics in a microstructured Cr$|$Heusler$|$Pt waveguide driven by the Spin-Hall-Effect and the Spin-Transfer-Torque effect via short current pulses. In particular, we focus on the determination
Externí odkaz:
http://arxiv.org/abs/1711.09647
Autor:
Ruiz-Calaforra, A., Purbawati, A., Brächer, T., Hem, J., Murapaka, C., Jiménez, E., Mauri, D., Zeltser, A., Katine, J. A., Cyrille, M. -C., Buda-Prejbeanu, L. D., Ebels, U.
Spin torque nano-oscillators are nanoscopic microwave frequency generators which excel due to their large frequency tuning range and agility for amplitude and frequency modulation. Due to their compactness, they are regarded as suitable candidates fo
Externí odkaz:
http://arxiv.org/abs/1707.04467
Autor:
Meyer, T., Brächer, T., Heussner, F., Serga, A. A., Naganuma, H., Mukaiyama, K., Oogane, M., Ando, Y., Hillebrands, B., Pirro, P.
We present a time-resolved study of the DC-current driven magnetization dynamics in a microstructured Cr/Heusler/Pt waveguide by means of Brillouin light scattering. A reduction of the effective spin-wave damping via the spin-transfer-torque effect l
Externí odkaz:
http://arxiv.org/abs/1701.02094
We report on the excitation and detection of short-waved spin waves with wave vectors up to about $40\,\mathrm{rad}\,\mu\mathrm{m}^{-1}$ in spin-wave waveguides made from ultrathin, in-plane magnetized Co$_{8}$Fe$_{72}$B$_{20}$ (CoFeB). The CoFeB is
Externí odkaz:
http://arxiv.org/abs/1701.01399
Autor:
Schneider, M., Brächer, T., Breitbach, D., Lauer, V., Pirro, P., Bozhko, D. A., Serga, A. A., Musiienko-Shmarova, H. Yu., Heinz, B., Wang, Q., Meyer, T., Heussner, F., Keller, S., Papaioannou, E. Th., Lägel, B., Löber, T., Tiberkevich, V. S., Slavin, A. N., Dubs, C., Hillebrands, B., Chumak, A. V.
The fundamental phenomenon of Bose-Einstein Condensation (BEC) has been observed in different systems of real and quasi-particles. The condensation of real particles is achieved through a major reduction in temperature while for quasi-particles a mec
Externí odkaz:
http://arxiv.org/abs/1612.07305
Autor:
Lauer, V., Bozhko, D. A., Brächer, T., Pirro, P., Vasyuchka, V. I., Serga, A. A., Jungfleisch, M. B., Agrawal, M., Kobljanskyj, Yu. V., Melkov, G. A., Dubs, C., Hillebrands, B., Chumak, A. V.
Publikováno v:
Appl. Phys. Lett. 108, 012402 (2016)
The damping of spin waves parametrically excited in the magnetic insulator Yttrium Iron Garnet (YIG) is controlled by a dc current passed through an adjacent normal-metal film. The experiment is performed on a macroscopically sized YIG(100nm)/Pt(10nm
Externí odkaz:
http://arxiv.org/abs/1508.07517
The interaction of propagating dipolar spin waves with magnetic domain walls is investigated in square-shaped microstructures patterned from the Heusler compound Co$_2$Mn$_{0.6}$Fe$_{0.4}$Si. Using magnetic force microscopy, the reversible preparatio
Externí odkaz:
http://arxiv.org/abs/1506.02303