| Naslov: | Reconfiguration of nematic disclinations in plane-parallel confinements |
|---|
| Avtorji: | ID Harkai, Saša (Avtor)
ID Rosenblatt, Charles (Avtor)
ID Kralj, Samo (Avtor) |
|---|
| Datoteke: |  Harkai-2023-Reconfiguration_of_Nematic_Disclin.pdf (7,16 MB)
MD5: 4F116EDB704104D49F1B6532B01DAC63
 https://doi.org/10.3390/cryst13060904
|
|---|
| Jezik: | Angleški jezik |
|---|
| Vrsta gradiva: | Članek v reviji |
|---|
| Tipologija: | 1.01 - Izvirni znanstveni članek |
|---|
| Organizacija: | FNM - Fakulteta za naravoslovje in matematiko
|
|---|
| Opis: | We study numerically the reconfiguration process of colliding |m|=1/2 strength disclinations in an achiral nematic liquid crystal (NLC). A Landau–de Gennes approach in terms of tensor nematic-order parameters is used. Initially, different pairs {m1,m2} of parallel wedge disclination lines connecting opposite substrates confining the NLC in a plane-parallel cell of a thickness h are imposed: {1/2,1/2}, {−1/2,−1/2} and {−1/2,1/2}. The collisions are imposed by the relative rotation of the azimuthal angle θ of the substrates that strongly pin the defect end points. Pairs {1/2,1/2} and {−1/2,−1/2} “rewire” at the critical angle θ(1)c=3π/4 in all cases studied. On the other hand, two qualitatively different scenarios are observed for {−1/2,1/2}. In the thinner film regime ℎ<ℎc, the disclinations rewire at θ(2)c=5π/4. The rewiring process is mediated by an additional chargeless loop nucleated in the middle of the cell. In the regime ℎ>ℎc, the colliding disclinations at θ(2)c reconfigure into boojum-like twist disclinations. |
|---|
| Ključne besede: | liquid crystals, topological defects, disclinations, reconfiguration |
|---|
| Status publikacije: | Objavljeno |
|---|
| Verzija publikacije: | Objavljena publikacija |
|---|
| Poslano v recenzijo: | 20.04.2023 |
|---|
| Datum sprejetja članka: | 27.05.2023 |
|---|
| Datum objave: | 01.06.2023 |
|---|
| Založnik: | MDPI |
|---|
| Leto izida: | 2023 |
|---|
| Št. strani: | Str. 1-11 |
|---|
| Številčenje: | Letn. 13, Št. 6, št. članka 904 |
|---|
| PID: | 20.500.12556/DKUM-87754  |
|---|
| UDK: | 532.783 |
|---|
| COBISS.SI-ID: | 156823043 |
|---|
| DOI: | 10.3390/cryst13060904 |
|---|
| ISSN pri članku: | 2073-4352 |
|---|
| Datum objave v DKUM: | 28.03.2024 |
|---|
| Število ogledov: | 389 |
|---|
| Število prenosov: | 46 |
|---|
| Metapodatki: |    |
|---|
| Področja: | Ostalo
|
|---|
|
:
|
Kopiraj citat |
|---|
| | | | Skupna ocena: | (0 glasov) |
|---|
| Vaša ocena: | Ocenjevanje je dovoljeno samo prijavljenim uporabnikom. |
|---|
| Objavi na: |  |
|---|
Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše
podrobnosti ali sproži prenos. |
