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Ultrafast electron diffraction study of single-crystal (EDO-TTF)2SbF6: Counterion effect and dimensionality reduction

MPG-Autoren
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Jiang,  Yifeng
Department of Chemistry, University of Toronto, Canada;
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Müller-Werkmeister,  Henrike
Department of Chemistry, University of Toronto, Canada;
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Miller,  R. J. Dwayne
Department of Chemistry, University of Toronto, Canada;
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Zitation

Liu, L. C., Jiang, Y., Müller-Werkmeister, H., Lu, C., Moriena, G., Ishikawa, M., et al. (2017). Ultrafast electron diffraction study of single-crystal (EDO-TTF)2SbF6: Counterion effect and dimensionality reduction. Chemical Physics Letters. doi:10.1016/j.cplett.2017.05.007.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-49E0-1
Zusammenfassung
Ultrafast electron diffraction is a sensitive tool to directly study molecular dynamics in structural detail. Here, we report the influence of counterion size on the photoinduced insulator-to-metal phase transition in two derivatives of the organic salt (EDO-TTF)2XF6. For X = P, three dominant motions are present and the molecules undergo the transition, whereas in the case of X = Sb, only two dominant motions are found and the molecules do not evolve into the metallic state. This reduction in dimensionality is supported by a novel data analysis method involving singular value decomposition of time-resolved electron diffraction data in reciprocal space.