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Distinctive features of pretransitional behaviour between nematic phases as revealed by DDM
ID
Sebastián Ugarteche, Nerea
(
Author
),
ID
Cmok, Luka
(
Author
),
ID
Petelin, Andrej
(
Author
),
ID
Mandle, Richard J.
(
Author
),
ID
Mertelj, Alenka
(
Author
)
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https://www.tandfonline.com/doi/full/10.1080/02678292.2024.2322611
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Abstract
Pretransitional behaviour, with strong softening of the bend or splay elastic constants, is characteristic of two of the nematic to nematic phase transitions reported in the last decade. Such softening is strongly reflected in the pretransitional behaviour of the thermally excited director fluctuations. Here we give a comprehensive overview of the cross-Differential Dynamic Microscopy (c-DDM) method and its application to the investigation of thermal director fluctuations and phase transitions. For this, we build on the potentialities of the method for the investigation of the standard nematic phase of E7 to compare with the pretransitional behaviour of the nematic to twist bend nematic phase transition as well as the nematic to ferroelectric nematic transition.
Language:
English
Keywords:
thermal fluctuations
,
dynamic light scattering
,
cross-differential dynamic microscopy
,
nematic-nematic phase transitions
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FMF - Faculty of Mathematics and Physics
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
Str. 1047–1063
Numbering:
Vol. 51, no. 6
PID:
20.500.12556/RUL-160341
UDC:
53
ISSN on article:
0267-8292
DOI:
10.1080/02678292.2024.2322611
COBISS.SI-ID:
187903491
Publication date in RUL:
26.08.2024
Views:
110
Downloads:
33
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Record is a part of a journal
Title:
Liquid crystals
Shortened title:
Liq. cryst.
Publisher:
Taylor & Francis
ISSN:
0267-8292
COBISS.SI-ID:
1690628
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
kompleksne snovi
,
fazni prehodi
,
toplotni tokovi
Projects
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P1-0192
Name:
Svetloba in snov
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J1-50004
Name:
Strukturiranje domen in topoloških defektov v feroelektričnih nematičnih tekočinah
Funder:
UKRI - UK Research and Innovation
Funding programme:
FLF
Project number:
MR/W006391/1
Name:
A New Order of Liquids: Polar and ferroelectric orientationally modulated soft materials
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