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Conferences > UP > 2022 > Th4A > Th4A.34

Underdamped longitudinal soft mode dynamics in KDP observed by ultrafast x-ray diffraction

Isabel Gonzalez-Vallejo, Azize Koç, Klaus Reimann, Michael Woerner, and Thomas Elsaesser

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Abstract

Ultrafast x-ray powder diffraction reveals a longitudinal underdamped soft mode in paraelectric KDP. Electron density maps derived from the x-ray data demonstrate oscillatory charge relocations over interatomic distances, much larger than the underlying nuclear displacements.

© 2022 The Author(s)

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