NDLI: Ultrafast Electron and Spin Dynamics in Nickel Probed With Femtosecond X-Ray Pulses

Content Provider	IEEE Xplore Digital Library
Author	Durr, H.A. Stamm, C. Kachel, T. Pontius, N. Mitzner, R. Quast, T. Holldack, K. Khan, S. Lupulescu, C. Aziz, E.F. Wietstruk, M. Eberhardt, W.
Copyright Year	1965
Abstract	We present the first X-ray absorption spectrum over an entire absorption edge using femtosecond pulses from a synchrotron-based slicing source. An ultrafast laser pulse excited a nickel film, and a succeeding X-ray pulse from the BESSY femtoslicing facility probed the Ni L₃-edge. By choosing either linear or circular X-ray polarization, the spectra represent snapshots of the electronic or the magnetic state, respectively, with an exposure time of about 100 fs. We find an almost instantaneous response of the electronic system to the laser pulse, and provide a first direct measurement of the quenching of magnetic moments within 120 fs.
Sponsorship	IEEE Magnetics Society
Starting Page	1957
Ending Page	1961
Page Count	5
File Size	344235
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Nickel Ultrafast electronics X-ray lasers Optical pulses Electromagnetic wave absorption Pulse measurements Laser excitation Magnetic films Polarization X-ray absorption Femtosecond X-ray pulses laser excitation magnetization dynamics
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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