Dynamics of nanoscopic magnetic clusters in (Pr,Ca)MnO3 thin films observed by ultrafast magnetooptics

author: Tomaž Mertelj, Department for Complex Matter, Jožef Stefan Institute
published: Feb. 12, 2008,   recorded: October 2007,   views: 3391


Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.


Phase separated state of thin films of (Pr0.6Ca0.4)MnO3 on LaAlO3 and SrTiO3 substrates was investigated by means of the ultrafast time-resolved magnetooptics in the magnetic field up to 1.1 T. The photoinduced Kerr rotation and ellipticity show remarkably different magnetic-field dependence. From comparison with the static Kerr rotation and ellipticity we conclude that two different magnetic phases are present in the samples at low temperatures. According to small angle neutron scattering results [1] one of the phases originates from nanoscopic ferromagnetic metallic clusters. Temporal dependence of the photoinduced Kerr signals indicates that upon photoexcitation changes of the volume fraction of these phases take place on a timescale of a few tens of picoseconds.

See Also:

Download slides icon Download slides: slonano07_mertelj_dnm.ppt (1.4 MB)

Help icon Streaming Video Help

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: