Abstract
A polarization-independent, nonthermal optical effect on the magnetization in bismuth iron garnet is found, in addition to the circular polarization-dependent inverse Faraday effect and the linear polarization-dependent photoinduced magnetic anisotropy. Its impulsive character is demonstrated by the field dependence of the amplitude of the resulting precession, which cannot be explained by a long-living photo or heat-induced anisotropy.
- Received 4 November 2014
- Revised 5 May 2015
DOI:https://doi.org/10.1103/PhysRevB.91.184415
©2015 American Physical Society
