Distinctive features of pretransitional behaviour between nematic phases as revealed by DDM

Sebastián Ugarteche, Nerea (avtor), Cmok, Luka (avtor), Petelin, Andrej (avtor), Mandle, Richard J. (avtor), Mertelj, Alenka (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: thermal fluctuations, dynamic light scattering, cross-differential dynamic microscopy, nematic-nematic phase transitions
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 1047–1063
• Številčenje: Vol. 51, no. 6
• PID: 20.500.12556/RUL-160341
• UDK: 53
• ISSN pri članku: 0267-8292
• DOI: 10.1080/02678292.2024.2322611
• COBISS.SI-ID: 187903491
• Datum objave v RUL: 26.08.2024

Gradivo je del revije

• Naslov: Liquid crystals
• Skrajšan naslov: Liq. cryst.
• Založnik: Taylor & Francis
• ISSN: 0267-8292
• COBISS.SI-ID: 1690628

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kompleksne snovi, fazni prehodi, toplotni tokovi