Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Brächer, Thomas"'
Autor:
Breitbach, David, Schneider, Michael, Heinz, Björn, Kohl, Felix, Maskill, Jan, Scheuer, Laura, Serha, Rostyslav O., Brächer, Thomas, Lägel, Bert, Dubs, Carsten, Tiberkevich, Vasil S., Slavin, Andrei N., Serga, Alexander A., Hillebrands, Burkard, Chumak, Andrii V., Pirro, Philipp
Publikováno v:
Physical Review Letters 131, 156701 (2023)
Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in magnonic nanostructures. Using the technique of rapid cooling, we create a non-equilibrium state
Externí odkaz:
http://arxiv.org/abs/2208.11455
Autor:
Schneider, Michael, Breitbach, David, Serha, Rostyslav O., Wang, Qi, Mohseni, Morteza, Serga, Alexander A., Slavin, Andrei N., Tiberkevich, Vasyl S., Heinz, Björn, Brächer, Thomas, Lägel, Bert, Dubs, Carsten, Knauer, Sebastian, Dobrovolskiy, Oleksandr V., Pirro, Philipp, Hillebrands, Burkard, Chumak, Andrii V.
Publikováno v:
Physical Review B 104, L140405 (2021)
We have recently shown that injection of magnons into a magnetic dielectric via the spin-orbit torque (SOT) effect in the adjacent layer of a heavy metal subjected to the action of short (0.1 $\mu$s) current pulses allows for control of a magnon Bose
Externí odkaz:
http://arxiv.org/abs/2106.14710
Publikováno v:
Appl Phys Lett, 118, 182404, (2021)
We discuss the realization of a magnonic version of the STImulated-Raman-Adiabatic-Passage (m-STIRAP) mechanism using micromagnetic simulations. We consider the propagation of magnons in curved magnonic directional couplers. Our results demonstrate t
Externí odkaz:
http://arxiv.org/abs/2106.12318
Autor:
Heinz, Björn, Mohseni, Morteza, Lentfert, Akira, Verba, Roman, Schneider, Michael, Lägel, Bert, Levchenko, Khrystyna, Brächer, Thomas, Dubs, Carsten, Chumak, Andrii V., Pirro, Philipp
The research feld of magnonics proposes a low-energy wave-logic computation technology based on spin waves to complement the established CMOS technology and provide a basis for emerging unconventional computation architectures. However, magnetic damp
Externí odkaz:
http://arxiv.org/abs/2106.10727
Autor:
Schneider, Michael, Breitbach, David, Serha, Rostyslav O., Wang, Qi, Serga, Alexander A., Slavin, Andrei N., Tiberkevich, Vasyl S., Heinz, Björn, Lägel, Bert, Brächer, Thomas, Dubs, Carsten, Knauer, Sebastian, Dobrovolskiy, Oleksandr V., Pirro, Philipp, Hillebrands, Burkard, Chumak, Andrii V.
Publikováno v:
Physical Review Letters 127, 237203 (2021)
Previously, it has been shown that rapid cooling of yttrium-iron-garnet (YIG)/platinum (Pt) nano structures, preheated by an electric current sent through the Pt layer, leads to overpopulation of a magnon gas and to subsequent formation of a Bose-Ein
Externí odkaz:
http://arxiv.org/abs/2102.13481
Autor:
Heinz, Björn, Wang, Qi, Schneider, Michael, Weiß, Elisabeth, Lentfert, Akira, Lägel, Bert, Brächer, Thomas, Dubs, Carsten, Dobrovolskiy, Oleksandr V., Pirro, Philipp, Chumak, Andrii V.
Magnonics attracts increasing attention in the view of novel low-energy computation technologies based on spin waves. Recently, spin-wave propagation in longitudinally magnetized nano-scaled spin-wave conduits was demonstrated, proving the fundamenta
Externí odkaz:
http://arxiv.org/abs/2101.10192
Autor:
Böttcher, Tobias, Lee, Kyujoon, Heussner, Frank, Jaiswal, Samridh, Jakob, Gerhard, Kläui, Mathias, Hillebrands, Burkard, Brächer, Thomas, Pirro, Philipp
We present results of the analysis of Brillouin Light Scattering (BLS) measurements of spin waves performed on ultrathin single and multirepeat CoFeB layers with adjacent heavy metal layers. From a detailed study of the spin-wave dispersion relation,
Externí odkaz:
http://arxiv.org/abs/2006.02690
Autor:
Heinz, Björn, Wang, Qi, Verba, Roman, Vasyuchka, Vitaliy I., Kewenig, Martin, Pirro, Philipp, Schneider, Michael, Meyer, Thomas, Lägel, Bert, Dubs, Carsten, Brächer, Thomas, Dobrovolskiy, Oleksandr V., Chumak, Andrii V.
Publikováno v:
Ukr. J. Phys. 65, 1094 (2020)
The field of magnonics attracts significant attention due to the possibility of utilizing information coded into the spin-wave phase or amplitude to perform computation operations on the nanoscale. Recently, spin waves were investigated in Yttrium Ir
Externí odkaz:
http://arxiv.org/abs/2002.00003
Autor:
Mohseni, Morteza, Wang, Qi, Mohseni, Majid, Brächer, Thomas, Hillebrands, Burkard, Pirro, Philipp
Publikováno v:
Phys. Rev. Applied 13, 024040 (2020)
Magnetic droplets are strongly nonlinear and localized spin-wave solitons that can be formed in current-driven nanocontacts. Here, we propose a simple way to launch droplets in an inhomogeneous nanoscopic waveguide. We use the drift motion of a dropl
Externí odkaz:
http://arxiv.org/abs/2001.08967
Autor:
Grassi, Matías, Geilen, Moritz, Louis, Damien, Mohseni, Morteza, Brächer, Thomas, Hehn, Michel, Stoeffler, Daniel, Bailleul, Matthieu, Pirro, Philipp, Henry, Yves
Publikováno v:
Phys. Rev. Applied 14, 024047 (2020)
Spin waves, the collective excitations of the magnetic order parameter, and magnons, the associated quasiparticles, are envisioned as possible data carriers in future wave-based computing architectures. On the road towards spin-wave computing, the de
Externí odkaz:
http://arxiv.org/abs/1912.09735