1.
Phys Rev Lett
; 112(14): 147403, 2014 Apr 11.
Article
in English
| MEDLINE
| ID: mdl-24766012
ABSTRACT
Femtosecond laser pulses trigger in dielectric FeBO3 coherent oscillations of the magnetic anisotropy followed by spins. The oscillations are driven by optically excited lattice vibrations strongly coupled to the magnetic system. Unlike the spin resonances, this mode is characterized by a very small damping ratio and can be easily pushed into an anharmonic regime.