5 papers
Temperature dependence of spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides
Björn Heinz, Qi Wang, Roman Verba +10
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…
Propagation of spin-waves packets in individual nano-sized yttrium iron garnet magnonic conduits
Björn Heinz, Thomas Brächer, Michael Schneider +10
Modern-days CMOS-based computation technology is reaching its fundamental limitations. The emerging field of magnonics, which utilizes spin waves for data transport and processing,…
Optical determination of the exchange stiffness constant in an iron garnet
Keita Matsumoto, Thomas Brächer, Philipp Pirro +7
Brillouin light scattering measurements were performed in the backscattering geometry on a Bi-substituted rare earth iron garnet. We observed two different peaks, one attributed to…
Realization of a spin wave switch based on the Spin-Transfer-Torque effect
Thomas Meyer, Thomas Brächer, Frank Heussner +7
We investigate the amplification of externally excited spin waves via the Spin-Transfer-Torque (STT) effect in combination with the Spin-Hall-Effect (SHE) employing short current p…
Experimental investigation of the temperature-dependent magnon density and its influence on studies of spin-transfer-torque-driven systems
Thomas Meyer, Thomas Brächer, Frank Heussner +7
We present the temperature dependence of the thermal magnon density in a thin ferromagnetic layer. By employing Brillouin light scattering and varying the temperature, an increase…