Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence
The recently discovered ferroelectric nematic liquid-crystal material DIO exhibits an antiferroelectric (AF) phase, characterized by a sinusoidally modulated structure between the paraelectric (P) and ferroelectric (F) nematic phases. Although these sinusoidal modulated structures associated with th...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Giant |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666542525000050 |
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| author | Hiroya Nishikawa Péter Salamon Marcell Tibor Máthé Antal Jákli Fumito Araoka |
| author_facet | Hiroya Nishikawa Péter Salamon Marcell Tibor Máthé Antal Jákli Fumito Araoka |
| author_sort | Hiroya Nishikawa |
| collection | DOAJ |
| description | The recently discovered ferroelectric nematic liquid-crystal material DIO exhibits an antiferroelectric (AF) phase, characterized by a sinusoidally modulated structure between the paraelectric (P) and ferroelectric (F) nematic phases. Although these sinusoidal modulated structures associated with the P–AF–F phase sequence is commonly observed in solid ferroelectrics, their presence in soft matter systems is scarce. This study is aimed at examining the macroscopic properties of DIO, identifying unique rheological properties, such as switching between shear thinning and shear thickening behaviors at certain shear rate in the ferroelectric nematic phase. Additionally, a significant electroviscous effect is observed, with the viscosity increasing by 70 times under an ultra-low electric field of 0.15 V µm−1 at the AF–F transition. |
| format | Article |
| id | doaj-art-d2befdca5d7d4d1aaee3918885b2a5dc |
| institution | OA Journals |
| issn | 2666-5425 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Giant |
| spelling | doaj-art-d2befdca5d7d4d1aaee3918885b2a5dc2025-08-20T02:16:09ZengElsevierGiant2666-54252025-04-012210035610.1016/j.giant.2025.100356Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequenceHiroya Nishikawa0Péter Salamon1Marcell Tibor Máthé2Antal Jákli3Fumito Araoka4RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, JapanHUN-REN Wigner Research Centre for Physics, PO Box 49, Budapest, H-1525, Hungary; Corresponding authors.HUN-REN Wigner Research Centre for Physics, PO Box 49, Budapest, H-1525, HungaryMaterial Science Graduate Program and Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, Ohio, 44242, USA; Department of Physics, Kent State University, Kent, Ohio, 44242, USA; Corresponding authors.RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan; Corresponding authors.The recently discovered ferroelectric nematic liquid-crystal material DIO exhibits an antiferroelectric (AF) phase, characterized by a sinusoidally modulated structure between the paraelectric (P) and ferroelectric (F) nematic phases. Although these sinusoidal modulated structures associated with the P–AF–F phase sequence is commonly observed in solid ferroelectrics, their presence in soft matter systems is scarce. This study is aimed at examining the macroscopic properties of DIO, identifying unique rheological properties, such as switching between shear thinning and shear thickening behaviors at certain shear rate in the ferroelectric nematic phase. Additionally, a significant electroviscous effect is observed, with the viscosity increasing by 70 times under an ultra-low electric field of 0.15 V µm−1 at the AF–F transition.http://www.sciencedirect.com/science/article/pii/S2666542525000050FerroelectricAntiferroelectricModulated antiferroelectricElectroviscousDIORM734 |
| spellingShingle | Hiroya Nishikawa Péter Salamon Marcell Tibor Máthé Antal Jákli Fumito Araoka Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence Giant Ferroelectric Antiferroelectric Modulated antiferroelectric Electroviscous DIO RM734 |
| title | Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence |
| title_full | Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence |
| title_fullStr | Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence |
| title_full_unstemmed | Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence |
| title_short | Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence |
| title_sort | giant electro viscous effects in polar fluids with paraelectric modulated antiferroelectric ferroelectric phase sequence |
| topic | Ferroelectric Antiferroelectric Modulated antiferroelectric Electroviscous DIO RM734 |
| url | http://www.sciencedirect.com/science/article/pii/S2666542525000050 |
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