Marcel Holtz
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View article: Phonon driven charge dynamics in polycrystalline acetylsalicylic acid mapped by ultrafast x-ray diffraction
Phonon driven charge dynamics in polycrystalline acetylsalicylic acid mapped by ultrafast x-ray diffraction Open
The coupled lattice and charge dynamics induced by phonon excitation in polycrystalline acetylsalicylic acid (aspirin) are mapped by femtosecond x-ray powder diffraction. The hybrid-mode character of the 0.9 ± 0.1 THz methyl rotation in th…
View article: Soft-mode driven dynamics in ferroelectrics -new insight from ultrafast terahertz and x-ray experiments
Soft-mode driven dynamics in ferroelectrics -new insight from ultrafast terahertz and x-ray experiments Open
The coupled lattice and charge dynamics connected with soft-mode excitations are mapped by nonlinear terahertz spectroscopy and ultrafast x-ray diffraction. Sub-picometer lattice displacements induce electron relocations over 100 pm in pol…
View article: Soft-mode driven polarity reversal in ferroelectrics mapped by ultrafast x-ray diffraction
Soft-mode driven polarity reversal in ferroelectrics mapped by ultrafast x-ray diffraction Open
Quantum theory has linked microscopic currents and macroscopic polarizations of ferroelectrics, but the interplay of lattice excitations and charge dynamics on atomic length and time scales is an open problem. Upon phonon excitation in the…
View article: CCDC 1855567: Experimental Crystal Structure Determination
CCDC 1855567: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Towards shot-noise limited diffraction experiments with table-top femtosecond hard x-ray sources
Towards shot-noise limited diffraction experiments with table-top femtosecond hard x-ray sources Open
Table-top laser-driven hard x-ray sources with kilohertz repetition rates are an attractive alternative to large-scale accelerator-based systems and have found widespread applications in x-ray studies of ultrafast structural dynamics. Hard…