Polar order in liquids

44 mins 46 secs,  171.12 MB,  iPod Video  480x270,  29.97 fps,  44100 Hz,  521.89 kbits/sec
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Description: Mertelj, A
Friday 18th January 2019 - 11:00 to 11:45
 
Created: 2019-01-18 16:22
Collection: The mathematical design of new materials
Publisher: Isaac Newton Institute
Copyright: Mertelj, A
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: Polar order, i.e., ferromagnetic or ferroelectric, in 3D liquids is experimentally rarely observed. In this talk I will discuss the reason for this and show two examples of how shape of constituents can promote polar order. The first example is a ferromagnetic liquid phase, which emerges in a suspension of magnetic nanoplatelets in isotropic solvent as a result of platelets’ shape. The second example is antiferroelectric splay nematic phase, which appears in materials made of wedge-shaped molecules with large electric dipole moments. Co-Authors: Darja Lisjak1, Patricija Hribar Boštjančič1, Borut Lampret1, Luka Cmok1, Žiga Gregorin1, Natan Osterman1, Nerea Sebastian1, Martin Čopič1, Joachim Kohlbrecher2, Juergen Klepp3, Richard J. Mandle4, Rachel R. Parker4, Adrian C. Whitwood4, John W. Goodby4 1J. Stefan Institute, Slovenia; 2PSI Villigen, Switzerland; 3University of Vienna, Austria; 4University of York, UK
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