Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy.
Tom S Seifert,
Samridh Jaiswal,
Joseph Barker,
Sebastian T Weber,
Ilya Razdolski,
Joel Cramer,
Oliver Gueckstock,
Sebastian F Maehrlein,
Lukas Nadvornik,
Shun Watanabe,
Chiara Ciccarelli,
Alexey Melnikov,
Gerhard Jakob,
Markus Münzenberg,
Sebastian TB Goennenwein,
Georg Woltersdorf,
Baerbel Rethfeld,
Piet W Brouwer,
Martin Wolf,
Mathias Kläui,
Tobias Kampfrath
Mar 06, 2019
Understanding the transfer of spin angular momentum is essential in modern magnetism research. A model case is the generation of magnons in magnetic insulators by heating an adjacent metal film. Here, we reveal the initial steps...