Field Induced Memory Effects in Random Nematics
We studied numerically external field induced memory effects in randomly perturbed nematic liquid crystals. Random anisotropy nematic-type lattice model was used. The impurities imposing orientational disorder were randomly spatially distributed with the concentration p below the percolation thresho...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/423693 |
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| _version_ | 1849305391969599488 |
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| author | Amid Ranjkesh Milan Ambrožič Samo Kralj T. J. Sluckin |
| author_facet | Amid Ranjkesh Milan Ambrožič Samo Kralj T. J. Sluckin |
| author_sort | Amid Ranjkesh |
| collection | DOAJ |
| description | We studied numerically external field induced memory effects in randomly perturbed nematic liquid crystals. Random anisotropy nematic-type lattice model was used. The impurities imposing orientational disorder were randomly spatially distributed with the concentration p below the percolation threshold. Simulations were carried for finite temperatures, where we varied p, interaction strength between LC molecules, and impurities and external field B. In the {B,T} plane we determined lines separating short range—quasi long range and quasi long range—long range order. Furthermore, crossover regime separating external field and random field dominated regime was estimated. We calculated remanent nematic ordering in samples at B=0 as a function of the previously experienced external field strength B. |
| format | Article |
| id | doaj-art-0770760599cc4b14a86b50bdf854fe1e |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-0770760599cc4b14a86b50bdf854fe1e2025-08-20T03:55:28ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242014-01-01201410.1155/2014/423693423693Field Induced Memory Effects in Random NematicsAmid Ranjkesh0Milan Ambrožič1Samo Kralj2T. J. Sluckin3Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška 160, 2000 Maribor, SloveniaFaculty of Natural Sciences and Mathematics, University of Maribor, Koroška 160, 2000 Maribor, SloveniaFaculty of Natural Sciences and Mathematics, University of Maribor, Koroška 160, 2000 Maribor, SloveniaDivision of Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, UKWe studied numerically external field induced memory effects in randomly perturbed nematic liquid crystals. Random anisotropy nematic-type lattice model was used. The impurities imposing orientational disorder were randomly spatially distributed with the concentration p below the percolation threshold. Simulations were carried for finite temperatures, where we varied p, interaction strength between LC molecules, and impurities and external field B. In the {B,T} plane we determined lines separating short range—quasi long range and quasi long range—long range order. Furthermore, crossover regime separating external field and random field dominated regime was estimated. We calculated remanent nematic ordering in samples at B=0 as a function of the previously experienced external field strength B.http://dx.doi.org/10.1155/2014/423693 |
| spellingShingle | Amid Ranjkesh Milan Ambrožič Samo Kralj T. J. Sluckin Field Induced Memory Effects in Random Nematics Advances in Condensed Matter Physics |
| title | Field Induced Memory Effects in Random Nematics |
| title_full | Field Induced Memory Effects in Random Nematics |
| title_fullStr | Field Induced Memory Effects in Random Nematics |
| title_full_unstemmed | Field Induced Memory Effects in Random Nematics |
| title_short | Field Induced Memory Effects in Random Nematics |
| title_sort | field induced memory effects in random nematics |
| url | http://dx.doi.org/10.1155/2014/423693 |
| work_keys_str_mv | AT amidranjkesh fieldinducedmemoryeffectsinrandomnematics AT milanambrozic fieldinducedmemoryeffectsinrandomnematics AT samokralj fieldinducedmemoryeffectsinrandomnematics AT tjsluckin fieldinducedmemoryeffectsinrandomnematics |