Achievements on a new findings of ultrafast spin dynamics by Dr. Arata Tsukamoto in international collaboration was published by Nature marerials.
| Nature materials: | April 2013, Volume 12 No 4 pp277-376, doi:10.1038/nmat3597 |
| Title: | Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo |
| Link: | http://www.nature.com/nmat/journal/v12/n4/full/nmat3597.html |
The dynamics of thin magnetic films revealed by ultrafast laser techniques cannot be explained by standard equilibrium descriptions. Diffraction experiments using an X-ray laser now allow the spin dynamics of the separate magnetic constituents of ferromagnetic GdFeCo alloys to be spatially resolved.
See also following article.
| News and Views, Nature materials April 2013, Volume 12 No 4 pp283 - 284, doi:10.1038/nmat3605 | |
| Title: | Ultrafast magnetism: Down to the nanometre scale |
| Author: | Jean-Yves Bigot |
| Link: | http://www.nature.com/nmat/journal/v12/n4/full/nmat3605.html |
The rich dynamics of magnetic materials subject to very short laser pulses is important for both information processing and recording technology. The characterization of these phenomena with nanoscale spatial resolution shines new light on our understanding of them.
