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Naslov:Curvature-controlled topological defects
Avtorji:ID Mesarec, Luka (Avtor)
ID Kurioz, Pavlo (Avtor)
ID Iglič, Aleš (Avtor)
ID Góźdź, Wojciech (Avtor)
ID Kralj, Samo (Avtor)
Datoteke:.pdf Crystals_2017_Mesarec_et_al._Curvature-Controlled_Topological_Defects.pdf (6,77 MB)
MD5: 27B85BC5F17AE9D1A365662B0A0193FD
PID: 20.500.12556/dkum/3ca58505-ca08-4f1c-9190-29a80129a36f
 
URL http://www.mdpi.com/2073-4352/7/6/153
 
Jezik:Angleški jezik
Vrsta gradiva:Znanstveno delo
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FNM - Fakulteta za naravoslovje in matematiko
Opis:Effectively, two-dimensional (2D) closed films exhibiting in-plane orientational ordering (ordered shells) might be instrumental for the realization of scaled crystals. In them, ordered shells are expected to play the role of atoms. Furthermore, topological defects (TDs) within them would determine their valence. Namely, bonding among shells within an isotropic liquid matrix could be established via appropriate nano-binders (i.e., linkers) which tend to be attached to the cores of TDs exploiting the defect core replacement mechanism. Consequently, by varying configurations of TDs one could nucleate growth of scaled crystals displaying different symmetries. For this purpose, it is of interest to develop a simple and robust mechanism via which one could control the position and number of TDs in such atoms. In this paper, we use a minimal mesoscopic model, where variational parameters are the 2D curvature tensor and the 2D orientational tensor order parameter. We demonstrate numerically the efficiency of the effective topological defect cancellation mechanism to predict positional assembling of TDs in ordered films characterized by spatially nonhomogeneous Gaussian curvature. Furthermore, we show how one could efficiently switch among qualitatively different structures by using a relative volume v of ordered shells, which represents a relatively simple naturally accessible control parameter.
Ključne besede:topological defects, Gaussian curvature, self-assembling, crystal growth nucleation
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Št. strani:str. 1-11
Številčenje:Letn. 7, št. 6
PID:20.500.12556/DKUM-66956 Novo okno
ISSN:2073-4352
UDK:548/549
COBISS.SI-ID:11753556 Novo okno
DOI:10.3390/cryst7060153 Novo okno
ISSN pri članku:2073-4352
NUK URN:URN:SI:UM:DK:BQXPYY0U
Datum objave v DKUM:20.07.2017
Število ogledov:1288
Število prenosov:470
Metapodatki:XML DC-XML DC-RDF
Področja:Ostalo
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Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

Naslov:Crystals
Skrajšan naslov:Crystals
Založnik:MDPI
ISSN:2073-4352
COBISS.SI-ID:36677893 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P1-0099
Naslov:Fizika mehkih snovi, površin in nanostruktur

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.
Začetek licenciranja:20.07.2017

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:topološki defekti, Gaussova ukrivljenost, samourejanje, tvorba in rast kristalov


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