Close-up on spin dynamics.
Stanislas Rohart and Guillemin Rodary
Imaging of spin waves in atomically designed nanomagnets.
A. Spinelli, B. Bryant, F. Delgado, J. Fernández-Rossier and A. F. Otte
Nature Materials 13, 782 (2014)
 |
a, Schematic view of spin-wave
excitation on a six-atom chain using scanning tunnelling microscopy. The
highest efficiency is obtained when the tip is placed at an edge atom. b,
Principle of spin-wave-assisted magnetization reversal in the chain.
The switching, due to thermal and/or quantum fluctuations, is much
faster when the scanning tunnelling microscope (STM) excites the chain
in a spin-wave (SW) state.
|
No comments:
Post a Comment