Memory effect in thin samples of chiral smectic C liquid crystals

Lejček, L.; Pirkl, S.

doi:10.1080/02678299008047397

Cited by 29 publications

(8 citation statements)

References 12 publications

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“…Using the above three equations, we can get the relation between the width of the zig-zag wall and the thickness of the cell as (4) tcos ysin6 sina We are interested in the case of narrow walls running parallel to 2. In W = this case, y=O, we get the following two equations:…”

Section: Discussionmentioning

confidence: 99%

“…Recently several papers [2][3][4][5][6] have discussed a new type of layer structure defect in the chiral smectics that appears as a stripe-shaped texture perpendicular to the smectic layers as observed under a polarizing microscope. This kind of texture can be created in samples of varing thickness [2] [4] after the application an AC electric field with a certain frequency in the smectic A or 127 Downloaded by [New York University] at 14:03 23 June 2015 128 R. F. SHAO, P. C. WILLIS AND N. A. CLARK the smectic C' .…”

Section: Introductionmentioning

confidence: 99%

“…This kind of texture can be created in samples of varing thickness [2] [4] after the application an AC electric field with a certain frequency in the smectic A or 127 Downloaded by [New York University] at 14:03 23 June 2015 128 R. F. SHAO, P. C. WILLIS AND N. A. CLARK the smectic C' . There are several models like parabolic focal conics, curvature walls, smectic layer deformations and electromechanical effects used to explain the causes of the stripe-shaped texture.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The field induced stripe texture in surface stabilized ferroelectric liquid crystal cells

1991

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The field induced stripe texture in surface stabilized ferroelectric liquid crystal cells

1991

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“…in SmC* materials [11] and indicates a racemic state with layers in zigzag formation. The same kind of transReferences formation was found for a symmetric banana molecule…”

Section: Discussionmentioning

confidence: 98%

Textural transformations of a smectic phase with asymmetric banana-shaped molecules

Jákli¹,

Lischka²,

Weißflog³

et al. 2000

Liquid Crystals

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Materials consisting of asymmetric banana-shaped molecules may form a smectic C G phase having C 1 symmetry. We have studied textural transformations in a smectic phase of an asymmetric chlorine-substituted banana-shaped material under electric and mechanical elds. We observed two novel features that have not been observed so far on corresponding materials with symmetric banana-shaped molecules. These observations, however, could be explained by the same arguments as were used for the symmetric molecules. Although our studies do not exclude the possibility that the material has C 1 symmetry, we suggest that the chlorine molecules are positioned arbitrarily and the bulk has C 2 symmetry.

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“…The condition (7 a) gives the relation qW/qy50 [19]. The equation (7 b) should be discussed together with the anchoring energy W s per unit surface area, which can be represented in the form:…”

mentioning

confidence: 99%

Twin‐like domains in chiral smectic C liquid crystals

et al. 2006

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In the chiral smectic C phase of liquid crystals with the phase transition N*-SmC*, texture development depending on the sample thickness is reported. In very thin samples, domains of rectangular-like shape are observed. As two possible tilts of smectic layers are possible for one anchoring direction, smectic layers inside a domain, called twin-like domains, are tilted with respect to layers in outer regions, similarly to crystalline planes in solid crystalline twins. An elastic model of such a twin domain is proposed and its energy determined.

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Memory effect in thin samples of chiral smectic C liquid crystals

Cited by 29 publications

References 12 publications

The field induced stripe texture in surface stabilized ferroelectric liquid crystal cells

The field induced stripe texture in surface stabilized ferroelectric liquid crystal cells

Textural transformations of a smectic phase with asymmetric banana-shaped molecules

Twin‐like domains in chiral smectic C liquid crystals

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