By Topic

Ultrafast optical modification of magnetic anisotropy and stimulated precession in an epitaxial Co2MnAl thin film

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
8 Author(s)
Liu, Y. ; School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom ; Shelford, L.R. ; Kruglyak, V.V. ; Hicken, R.J.
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link: 

An all-optical pump-probe method was used to study magnetization precession in an epitaxial Co2MnAl Heusler alloy thin film. The frequency and amplitude of precession showed a clear fourfold variation as the orientation of the static field was applied in different directions within the plane of the film, revealing that the precession is induced by an ultrafast modification of the magnetocrystalline anisotropy field. The effective fields acting upon the magnetization have been determined and the damping parameter is found to decrease rapidly as the strength of the applied field is increased.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 9 )