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- German Research Centre for Artificial IntelligenceDE125 papers
- Rheinland-Pfälzische Technische Universität Kaiserslautern-LandauDE110 papers
- Fraunhofer Institute for Industrial MathematicsDE89 papers
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6 papers · 2 filters
Electron-phonon scattering dynamics in ferromagnets on ultrafast timescales: Influence of the phonon temperature
Sven Essert, Hans Christian Schneider
The magnetization response of bulk ferromagnets after excitation by an ultrashort optical pulse is calculated using a dynamical model of the Elliott-Yafet type that includes the ef…
Surface spin polarization of the non-stoichiometric Heusler compound Co2Mn(alpha)Si
Jan-Peter Wüstenberg, Mirko Cinchetti, Martin Aeschlimann +6
Using a combined approach of spin-resolved photoemission spectroscopy, band structure and photoemission calculations we investigate the influence of bulk defects and surface states…
Driving Force of Ultrafast Magnetization Dynamics
Benedikt Y. Mueller, T. Roth, M. Cinchetti +2
Irradiating a ferromagnetic material with an ultrashort laser pulse leads to demagnetization on a femtosecond timescale. We implement Elliott-Yafet type spin-flip scattering, media…
Electron-phonon-scattering dynamics in ferromagnetic metals and its influence on ultrafast demagnetization processes
Sven Essert, Hans Christian Schneider
We theoretically investigate spin-dependent carrier dynamics due to the electron-phonon interaction after ultrafast optical excitation in ferromagnetic metals. We calculate the ele…
Acoustic spin pumping: Direct generation of spin currents from sound waves in Pt/Y3Fe5O12 hybrid structures
K. Uchida, H. Adachi, T. An +5
Using a Pt/Y3Fe5O12 (YIG) hybrid structure attached to a piezoelectric actuator, we demonstrate the generation of spin currents from sound waves. This "acoustic spin pumping" (ASP)…
Acoustic spin pumping as the origin of the long-range spin Seebeck effect
Ken-ichi Uchida, Hiroto Adachi, Toshu An +5
The spin Seebeck effect (SSE) is known as the generation of 'spin voltage' in a magnet as a result of a temperature gradient. Spin voltage stands for the potential for spins, which…