Nematic and Smectic Phases with Proper Ferroelectric Order
Abstract A material showing a sequence of three ferroelectric liquid crystalline phases below the paraelectric nematic phase is synthesized and studied. The polar order of molecules appearing due to the dipole–dipole interactions in the ferroelectric nematic, NF, phase is preserved also in the smect...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409754 |
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| author | Grant J. Strachan Ewa Górecka Jadwiga Szydłowska Anna Makal Damian Pociecha |
| author_facet | Grant J. Strachan Ewa Górecka Jadwiga Szydłowska Anna Makal Damian Pociecha |
| author_sort | Grant J. Strachan |
| collection | DOAJ |
| description | Abstract A material showing a sequence of three ferroelectric liquid crystalline phases below the paraelectric nematic phase is synthesized and studied. The polar order of molecules appearing due to the dipole–dipole interactions in the ferroelectric nematic, NF, phase is preserved also in the smectic phases: orthogonal SmAF and tilted SmCF. The ferroelectric ground state of both smectic phases is confirmed by their second harmonic generation (SHG) activity and polarization switching. In the SmCF phase the polarization becomes oriented to the electric field by decreasing the tilt angle to zero. Although both smectic phases are ferroelectric in nature, their dielectric response is found to be very different. |
| format | Article |
| id | doaj-art-c34b8d51c70a4d42b14e73aa08778612 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-c34b8d51c70a4d42b14e73aa087786122025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202409754Nematic and Smectic Phases with Proper Ferroelectric OrderGrant J. Strachan0Ewa Górecka1Jadwiga Szydłowska2Anna Makal3Damian Pociecha4Faculty of Chemistry University of Warsaw Zwirki i Wigury 101 Warsaw 02–089 PolandFaculty of Chemistry University of Warsaw Zwirki i Wigury 101 Warsaw 02–089 PolandFaculty of Chemistry University of Warsaw Zwirki i Wigury 101 Warsaw 02–089 PolandFaculty of Chemistry University of Warsaw Zwirki i Wigury 101 Warsaw 02–089 PolandFaculty of Chemistry University of Warsaw Zwirki i Wigury 101 Warsaw 02–089 PolandAbstract A material showing a sequence of three ferroelectric liquid crystalline phases below the paraelectric nematic phase is synthesized and studied. The polar order of molecules appearing due to the dipole–dipole interactions in the ferroelectric nematic, NF, phase is preserved also in the smectic phases: orthogonal SmAF and tilted SmCF. The ferroelectric ground state of both smectic phases is confirmed by their second harmonic generation (SHG) activity and polarization switching. In the SmCF phase the polarization becomes oriented to the electric field by decreasing the tilt angle to zero. Although both smectic phases are ferroelectric in nature, their dielectric response is found to be very different.https://doi.org/10.1002/advs.202409754dielectric constantferroelectricliquid crystals |
| spellingShingle | Grant J. Strachan Ewa Górecka Jadwiga Szydłowska Anna Makal Damian Pociecha Nematic and Smectic Phases with Proper Ferroelectric Order Advanced Science dielectric constant ferroelectric liquid crystals |
| title | Nematic and Smectic Phases with Proper Ferroelectric Order |
| title_full | Nematic and Smectic Phases with Proper Ferroelectric Order |
| title_fullStr | Nematic and Smectic Phases with Proper Ferroelectric Order |
| title_full_unstemmed | Nematic and Smectic Phases with Proper Ferroelectric Order |
| title_short | Nematic and Smectic Phases with Proper Ferroelectric Order |
| title_sort | nematic and smectic phases with proper ferroelectric order |
| topic | dielectric constant ferroelectric liquid crystals |
| url | https://doi.org/10.1002/advs.202409754 |
| work_keys_str_mv | AT grantjstrachan nematicandsmecticphaseswithproperferroelectricorder AT ewagorecka nematicandsmecticphaseswithproperferroelectricorder AT jadwigaszydłowska nematicandsmecticphaseswithproperferroelectricorder AT annamakal nematicandsmecticphaseswithproperferroelectricorder AT damianpociecha nematicandsmecticphaseswithproperferroelectricorder |