WFRF:(Naylor G)
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Time resolved X-ray diffraction and non-thermal inelastic X-ray scattering
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- Sondhauss, Peter (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Harbst, Michael (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
- Larsson, J. (author)
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- Naylor, G.A. (author)
- Plech, A. (author)
- Scheidt, K. (author)
- Wark, J.S. (author)
- Wulf, M. (author)
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- (creator_code:org_t)
- 2004
- 2004
- English.
- In: AIP Conference Proceedings. - 1551-7616 .- 0094-243X. ; 705, s. 1387-1390
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Atomic processes like e.g. molecular vibrations, chemical reactions or phase transitions happen on picosecond down to femtosecond time scales. Novel pulsed X-ray sources or alternatively ultrafast X-ray detectors allow the investigation of these processes in real time. A powerful tool for the investigation of the dynamics in crystalline materials is time resolved X-ray diffraction (TRXD). As an example the authors present the measurement of "phonon branch folding" in a GaSb/InAs superlattice by means of TRXD. In the second part we look forward to the near future of TRXD. X-ray scattering from coherent acoustic and optical phonons has recently become describable within the framework of dynamical diffraction theory. This theory provides the means for the detailed modeling of how various lattice dynamical processes manifest themselves in the diffracted X-ray signal. Simulations are presented showing the effects of coherent acoustic and optical phonons on the rocking curve of quartz (010)
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- TRXD
- GaSb/InAs superlattice
- phonon branch folding
- crystalline materials
- ultrafast X-ray detectors
- pulsed X-ray sources
- time scales
- phase transitions
- chemical reactions
- molecular vibrations
- time resolved X-ray diffraction
- nonthermal inelastic X-ray scattering
- optical phonons
- dynamical diffraction theory
- lattice dynamical processes
- diffracted X-ray signal
- GaSb-InAs
Publication and Content Type
- kon (subject category)
- ref (subject category)
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- Sondhauss, Peter
- Harbst, Michael
- Larsson, J.
- Naylor, G.A.
- Plech, A.
- Scheidt, K.
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- Synnergren, Ola
- Wark, J.S.
- Wulf, M.
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