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OpenAccess [PUBDB-2018-01139] Journal Article
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Quantized Self-Assembly of Discotic Rings in a Liquid Crystal Confined in Nanopores
Disklike molecules with aromatic cores spontaneously stack up in linear columns with high, one-dimensional charge carrier mobilities along the columnar axes, making them prominent model systems for functional, self-organized matter. We show by high-resolution optical birefringence and synchrotron-based x-ray diffraction that confining a thermotropic discotic liquid crystal in cylindrical nanopores induces a quantized formation of annular layers consisting of concentric circular bent columns, unknown in the bulk state. [...]
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OpenAccess [PUBDB-2017-02115] Journal Article
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A new setup for high resolution fast X-ray reflectivity data acquisition
A new method for fast x-ray reflectivity data acquisition is presented. The method is based on a fast rotating, slightly tilted sample reflecting to a stationary mounted position sensitive detector and it allows for measurements of reflectivity curves in a quarter of a second [...]
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