Observation of x-ray radiation pressure effects on nanocrystals

Bragg coherent diffractive imaging is a powerful technique that can be used to explore the internal structure and strain of nanoscale crystalline objects. During the data collection process, the Bragg peak typically stays within a small range of pixels on the x-ray sensitive area detector. Here, we...

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Bibliographic Details
Published in:Journal of applied physics 2016-10, Vol.120 (16), p.163102
Main Authors: Kim, J. W., Ulvestad, A., Manna, S., Harder, R., Fohtung, E., Singer, A., Boucheron, L., Fullerton, E. E., Shpyrko, O. G.
Format: Article
Language:English
Subjects:
Applied physics
Bragg curve
Coherence
Data collection
Momentum transfer
Nanocrystals
Nanowires
Pressure effects
Radiation pressure
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Summary:Bragg coherent diffractive imaging is a powerful technique that can be used to explore the internal structure and strain of nanoscale crystalline objects. During the data collection process, the Bragg peak typically stays within a small range of pixels on the x-ray sensitive area detector. Here, we report abrupt and irreversible Bragg peak movement during the coherent x-ray data collection process for both Pd nanocubes and a Ni nanowire. We report that this phenomenon can be attributed to x-ray momentum transfer, also known as radiation pressure, to the nanocrystals. Understanding this effect is crucial given the anticipated coherent flux increases at next-generation synchrotron sources.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4965728