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Projects / Programmes source: ARIS

Dinamika prostorsko omejenih tekočih kristalov (Slovene)

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Research activity

Code Science Field Subfield
1.02.01  Natural sciences and mathematics  Physics  Physics of condesed matter 

Code Science Field
P260  Natural sciences and mathematics  Condensed matter: electronic structure, electrical, magnetic and optical properties, supraconductors, magnetic resonance, relaxation, spectroscopy 
Keywords
liquid crystals, molecular dynamics, nuclear magnetic resonance, liquid crystal displays (LCD)
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (13)
no. Code Name and surname Research area Role Period No. of publications
1.  13416  PhD Jurij Bajc  Geology  Researcher  2000 - 2001  232 
2.  15839  PhD Anamarija Borštnik Bračič  Mathematics  Researcher  1999 - 2001  53 
3.  01114  PhD Marija Jamšek-Vilfan  Physics  Head  1998 - 2001  188 
4.  08612  PhD Samo Kralj  Physics  Researcher  1996 - 2001  911 
5.  03412  Ivana Levstik  Physics  Researcher  1996 - 2001  33 
6.  03426  MSc Bojan Marin  Physics  Researcher  1998 - 2001  93 
7.  07926  Silvano Mendizza    Researcher  1998 - 2001  7 
8.  01120  PhD Janez Pirš  Physics  Researcher  1998 - 2001  238 
9.  08737  Silvija Pirš    Researcher  1998 - 2001  80 
10.  07925  Ana Sepe    Researcher  1996 - 2001  131 
11.  12056  PhD Igor Serša  Physics  Researcher  1998 - 2001  471 
12.  18142  PhD Andreja Šarlah  Physics  Researcher  1996 - 2001  96 
13.  07110  PhD Slobodan Žumer  Physics  Researcher  1998 - 2001  1,026 
Organisations (2)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,742 
2.  1554  University of Ljubljana, Faculty of Mathematics and Physics  Ljubljana  1627007  34,117 
Abstract
Dynamic properties of microconfined liquid crystals are investigated in a broad frequency range by theoretical and experimental methods (NMR and optical). The results of the project for the year 1998 are described in 7 papers in scientific journals, in several contributions presented at international conferences, and in one patent. They include a new approach to measure the surface order parameter in liquid crystal dispersions where the standard NMR method fails. The new approach - based on NMR relaxometry of deuterium nuclei - allowed the first determination of the surface order parameter in a PDLC material. The modes of liquid crystal collective fluctuations have been calculated in the presence of orienting and disorienting surfaces. It is shown that the soft mode is related to the fluctuations in the thickness of the ordered surface layer in the isotropic phase, and can be tested by evanescent light scattering. Finally, three important phenomena - related to the application of liquid crystals to displays and optical shutters - have been investigated: optical phase retardation in a hybrid nematic cell, the localization of a twisted distortion induced by the surface ordering, and the influence of surface topology on chevron defects in ferroelectric liquid crystal cells.
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