Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-6847
|Main Title:||Transient lattice contraction in the solid-to-plasma transition|
|Author(s):||Ferguson, K. R.|
Koglin, J. E.
Williams, G. J.
Bucksbaum, P. H.
|Abstract:||In condensed matter systems, strong optical excitations can induce phonon-driven processes that alter their mechanical properties. We report on a new phenomenon where a massive electronic excitation induces a collective change in the bond character that leads to transient lattice contraction. Single large van der Waals clusters were isochorically heated to a nanoplasma state with an intense 10-fs x-ray (pump) pulse. The structural evolution of the nanoplasma was probed with a second intense x-ray (probe) pulse, showing systematic contraction stemming from electron delocalization during the solid-to-plasma transition. These findings are relevant for any material in extreme conditions ranging from the time evolution of warm or hot dense matter to ultrafast imaging with intense x-ray pulses or, more generally, any situation that involves a condensed matter-to-plasma transition.|
|DDC Class:||500 Naturwissenschaften und Mathematik|
|Journal Title:||Science Advances|
|Publisher:||American Association for the Advancement of Science (AAAS)|
|Publisher Place:||Washington, DC [u.a.]|
|Appears in Collections:||FG Energietechnik und Umweltschutz » Publications|
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