Femtosecond spectrotemporal magneto-optics

A new method to measure and analyze the time and spectrally resolved polarimetric response of magnetic materials is presented. It allows us to study the ultrafast magnetization dynamics of a CoPt3 ferromagnetic film. The analysis of the pump-induced rotation and ellipticity detected by a broad spect...

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Bibliographic Details
Published in:	Physical review letters Vol. 93; no. 7; pp. 077401.1 - 077401.4
Main Authors:	BIGOT, J.-Y, GUIDONI, L, BEAUREPAIRE, E, SAETA, P. N
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 13-08-2004
Subjects:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Metals and metallic alloys Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Physics Thin films Binary alloys Pump probe spectrometry Magnetization Platinum alloys Magneto-optical effects Ferromagnetic materials Time resolved spectra Cobalt alloys Ultrafast process
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Summary:	A new method to measure and analyze the time and spectrally resolved polarimetric response of magnetic materials is presented. It allows us to study the ultrafast magnetization dynamics of a CoPt3 ferromagnetic film. The analysis of the pump-induced rotation and ellipticity detected by a broad spectrum probe beam shows that magneto-optical signals predominantly reflect the spin dynamics in ferromagnets.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.93.077401