Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hula, Tobias"'
Autor:
Hula, Tobias
Spin waves and their quanta, magnons, are the wave-like excitations of a magnetically ordered medium. The technological prospect of utilizing them as low-loss information carriers has driven various research efforts in the field of magnonics. Spin wa
Autor:
Hache, Toni, Koerber, Lukas, Hula, Tobias, Lenz, Kilian, Kakay, Attila, Hellwig, Olav, Lindner, Juergen, Fassbender, Juergen, Schultheiss, Helmut
We use a pure spin current originating from the spin Hall effect to generate a spin-orbit torque (SOT) strongly reducing the effective damping in an adjacent ferromagnet. Due to additional microwave excitation, large spin-wave amplitudes are achieved
Externí odkaz:
http://arxiv.org/abs/2304.02708
Autor:
Körber, Lukas, Heins, Christopher, Hula, Tobias, Kim, Joo-Von, Schultheiss, Helmut, Fassbender, Jürgen, Schultheiss, Katrin
Magnons are elementary excitations in magnetic materials and undergo nonlinear multimode scattering processes at large input powers. In experiments and simulations, we show that the interaction between magnon modes of a confined magnetic vortex can b
Externí odkaz:
http://arxiv.org/abs/2211.02328
Autor:
Iurchuk, Vadym, Pablo-Navarro, Javier, Hula, Tobias, Narkowicz, Ryszard, Hlawacek, Gregor, Körber, Lukas, Kákay, Attila, Schultheiss, Helmut, Fassbender, Jürgen, Lenz, Kilian, Lindner, Jürgen
1D spin-wave conduits are envisioned as nanoscale components of magnonics-based logic and computing schemes for future generation electronics. `A-la-carte methods of versatile control of the local magnetization dynamics in such nanochannels are highl
Externí odkaz:
http://arxiv.org/abs/2209.13180
Autor:
Bejarano, Mauricio, Goncalves, Francisco J. T., Hache, Toni, Hollenbach, Michael, Heins, Christopher, Hula, Tobias, Körber, Lukas, Heinze, Jakob, Berencén, Yonder, Helm, Manfred, Fassbender, Jürgen, Astakhov, Georgy V., Schultheiss, Helmut
Ongoing efforts in quantum engineering have recently focused on integrating magnonics into hybrid quantum architectures for novel functionalities. While hybrid magnon-quantum spin systems have been demonstrated with nitrogen-vacancy (NV) centers in d
Externí odkaz:
http://arxiv.org/abs/2208.09036
Autor:
Hula, Tobias, Schultheiss, Katrin, Goncalves, Francisco José Trindade, Körber, Lukas, Bejarano, Mauricio, Copus, Matthew, Flacke, Luis, Liensberger, Lukas, Buzdakov, Aleksandr, Kákay, Attila, Weiler, Mathias, Camley, Robert, Fassbender, Jürgen, Schultheiß, Helmut
Publikováno v:
Appl. Phys. Lett. 121, 112404 (2022)
We experimentally demonstrate the generation of spin-wave frequency combs based on the nonlinear interaction of propagating spin waves in a microstructured waveguide. By means of time and space-resolved Brillouin light scattering spectroscopy, we sho
Externí odkaz:
http://arxiv.org/abs/2104.11491
Autor:
Körber, Lukas, Schultheiss, Katrin, Hula, Tobias, Verba, Roman, Faßbender, Jürgen, Kákay, Attila, Schultheiss, Helmut
Publikováno v:
Phys. Rev. Lett. 125, 207203 (2020)
We present a combined numerical, theoretical and experimental study on stimulated three-magnon splitting in a magnetic disk in the vortex equilibrium state. Our micromagnetic simulations and Brillouin-light-scattering results confirm that three-magno
Externí odkaz:
http://arxiv.org/abs/2005.12663
Autor:
Hula, Tobias, Schultheiss, Katrin, Buzdakov, Aleksandr, Körber, Lukas, Bejarano, Mauricio, Flacke, Luis, Liensberger, Lukas, Weiler, Mathias, Shaw, Justin M., Nembach, Hans T., Fassbender, Jürgen, Schultheiss, Helmut
Publikováno v:
Appl. Phys. Lett. 117, 042404 (2020)
We report on the impact of nonlinear four-magnon scattering on magnon transport in microstructured Co25Fe75 waveguides with low magnetic damping. We determine the magnon propagation length with microfocused Brillouin light scattering over a broad ran
Externí odkaz:
http://arxiv.org/abs/2005.12113
Autor:
Wojewoda, Ondřej, Hula, Tobias, Flajšman, Lukáš, Vaňatka, Marek, Gloss, Jonáš, Holobrádek, Jakub, Staňo, Michal, Stienen, Sven, Körber, Lukas, Schultheiß, Katrin, Schmid, Michael, Schultheiß, Helmut, Urbánek, Michal
Publikováno v:
Applied Physics Letters 117(2), 022405 (2020)
Spin waves have the potential to be used as a new platform for data transfer and processing as they can reach wavelengths in the nanometer range and frequencies in the terahertz range. To realize a spin-wave device, it is essential to be able to mani
Externí odkaz:
http://arxiv.org/abs/2005.05690
Autor:
Flacke, Luis, Liensberger, Lukas, Althammer, Matthias, Huebl, Hans, Geprägs, Stephan, Schultheiss, Katrin, Buzdakov, Aleksandr, Hula, Tobias, Schultheiss, Helmut, Edwards, Eric R. J., Nembach, Hans T., Shaw, Justin M., Gross, Rudolf, Weiler, Mathias
Publikováno v:
Appl. Phys. Lett. 115, 122402 (2019)
We report ultra-low intrinsic magnetic damping in Co$_{\text{25}}$Fe$_{\text{75}}$ heterostructures, reaching the low $10^{-4}$ regime at room temperature. By using a broadband ferromagnetic resonance technique, we extracted the dynamic magnetic prop
Externí odkaz:
http://arxiv.org/abs/1904.11321