Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/8632Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Krishnamurthy, K S | - |
| dc.contributor.author | Mandle, R J | - |
| dc.contributor.author | Gibb, C J | - |
| dc.contributor.author | Hobbs, J | - |
| dc.contributor.author | Madhusudana, N.V. | - |
| dc.date.accessioned | 2026-02-11T06:25:49Z | - |
| dc.date.available | 2026-02-11T06:25:49Z | - |
| dc.date.issued | 2025-11-28 | - |
| dc.identifier.citation | Soft Matter, 2026, Vol. 22(1) p 202-211 | en_US |
| dc.identifier.issn | 1744-6848 | - |
| dc.identifier.uri | http://hdl.handle.net/2289/8632 | - |
| dc.description | Restricted Access. | en_US |
| dc.description.abstract | Nematic layers of DIO held in planar aligning cells are found to exist in a periodic ground state, involving polar and azimuthal director deviations, even in the absence of any external perturbing field. The stripe instability appears definitively in thin cells, over a few °C above the antiferroelectric smectic ZA onset point, weakening progressively with increasing temperature. The pattern wave vector lies practically along the normal to the rubbing direction. In 90°-twist cells, two sets of stripes form with their wave vectors dependent on the substrate rubbing directions, evidencing the instability as a surface phenomenon. We propose for its origin a new mechanism that involves only the usual Frank elasticity and the surface electric field generated by adsorption of ions. The elastic energy of the proposed periodic director deformation field is zero, and it results from the gain in dielectric energy due to the surface electric field overcoming the cost of weakened anchoring energy. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Soft Matter | en_US |
| dc.relation.uri | https://doi.org/10.1039/D5SM00920K | en_US |
| dc.rights | 2026 The Royal Society of Chemistry | en_US |
| dc.title | Periodic ground state in the nematic phase of DIO due to an intrinsic surface electric field | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | Research Papers (SCM) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Periodic ground state in the nematic phase of DIO due to an intrinsic surface electric field.pdf Restricted Access | Restricted Access | 8.56 MB | Adobe PDF | View/Open Request a copy |
| Supplement_Periodic ground state in the nematic phase of DIO due to an intrinsic surface electric field.pdf Restricted Access | Restricted Access | 546.83 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.