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UID:DSC-9867
DTSTART;TZID=Europe/Berlin:20150930T110000
SEQUENCE:1443600065
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20150930T130000
URL:https://dresden-science-calendar.de/calendar/de/detail/9867
LOCATION:HZDR\, Bautzner Landstraße 40001328 Dresden
SUMMARY:Dürr: Clocking ultrafast spin motion with x-rays
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. Herrmann Dürr\nInstitute of Speaker: \nTopics:\
 nPhysik\n Location:\n  Name: HZDR (620/018 - Kleiner Hörsaal Kernphysik)\
 n  Street: Bautzner Landstraße 400\n  City: 01328 Dresden\n  Phone: \n  F
 ax: \nDescription: Clocking ultrafast spin motion with x-rays Hermann A. D
 ürr   SLAC National Accelerator Laboratory\, Menlo Park CA 94025\, USA hd
 urr@slac.stanford.edu   A key driver of modern information technology is t
 he quest for “smaller and faster” information processing and storage. 
 The ultimate speed limit is the speed of light. Therefore\, the idea to pr
 obe\, change and control properties of materials with the help of light ha
 s long intrigued researchers in materials science. Of particular interest 
 are magnetic materials which in nanostructured form are used for data stor
 age\, memory and processing. This research direction became especially app
 ealing after the development of femtosecond lasers that represent the shor
 test stimuli in contemporary experimental physics\, and the question arose
  whether they can be used for the optical control of the magnetic “bits
 ” of information [1-4]. Femtosecond soft x-ray pulses from the Linac Coh
 erent Light Source\, the world’s first x-ray free electron laser\, offer
  the unique opportunity to image in real time the ultrafast spin dynamics 
 that leads to magnetization reversal [4]. Hard x-rays enable first glimpse
 s at the laser-induced lattice motion. Understanding the evolving spin-lat
 tice motion on the fs time and nm length scales opens new possibilities of
  engineering energy and angular momentum relaxation channels in magnetic s
 ystems.   [1] E. Beaurepaire\, et al.\, Phys. Rev. Lett\, 76\, 4250 (1996)
 . [2] C.D. Stanciu et al.\, Phys. Rev. Lett\, 99\, 047601 (2007). [3] I. R
 adu\, et al.\, Nature 472\, 205 (2011). [4] C. E. Graves\, et al.\, Nature
  Materials\, 12\, 293 (2013).
DTSTAMP:20261014T080045Z
CREATED:20150910T074443Z
LAST-MODIFIED:20150930T080105Z
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