ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Paranematic order of nano-confined nCFPB liquid crystals
Abstract: Spatial confinement on the micro- and nanoscale can markedly affect the physics of liquid crystals (LCs). There is no ??true?? isotropic-nematic (I-N) transition for LCs confined in geometries spatially restricted in at least one direction to a few nanometres. The anchoring at the confining walls, quantified by a surface field, imposes a partial orientational, that is, a partially nematic ordering of the confined LCs, even at temperatures T far above the bulk I-N transition temperature. The strong first-order I-N transition is replaced by a weak continuous paranematic-nematic (P-N) transition, depending on the strength of the surface orientational field in nanoscopic straight channels in anodic aluminum oxide (AAO) membranes. We propose studies of the self-organization of nCFPB LC molecules in confinement via a series of SANS measurements at thermodynamically characteristic temperatures to provide important structural information for both soft matter theory and practical applications of certain LCs in displays and sensors.
Public release date: 16 May 2028
Principal Investigator: Dr Oleksandr Tomchuk
Experimenter: Dr Anna Drzewicz
Experimenter: Professor Wojciech Zajac
Experimenter: Dr Ewa Juszynska
Local Contact: Dr Leide Cavalcanti
Experimenter: Dr Miros?aw Ga??zka
Experimenter: Dr Marcin Piwowarczyk
DOI: 10.5286/ISIS.E.RB2510722-1
Parent DOI: 10.5286/ISIS.E.RB2510722
ISIS Experiment Number: RB2510722
Part Number: 1
This dataset is NOT yet publicly available.
The release date is: 16 May 2028
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Date of Experiment: 12 May 2025
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Dr Oleksandr Tomchuk et al; (2025): Paranematic order of nano-confined nCFPB liquid crystals, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510722-1
Data is released under the CC-BY-4.0 license.
