Search Results - "Sprunt, S"

Anomalous Increase in Nematic-Isotropic Transition Temperature in Dimer Molecules Induced by a Magnetic Field by Salili, S M, Tamba, M G, Sprunt, S N, Welch, C, Mehl, G H, Jákli, A, Gleeson, J T

“…We have determined the nematic-isotropic transition temperature as a function of an applied magnetic field in three different thermotropic liquid crystalline…”
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Giant flexoelectricity of bent-core nematic liquid crystals by Harden, J, Mbanga, B, Eber, N, Fodor-Csorba, K, Sprunt, S, Gleeson, J T, Jákli, A

“…Flexoelectricity is a coupling between orientational deformation and electric polarization. We present a direct method for measuring the flexoelectric…”
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Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field by Zhou, Shuang, Nastishin, Yu A, Omelchenko, M M, Tortora, L, Nazarenko, V G, Boiko, O P, Ostapenko, T, Hu, T, Almasan, C C, Sprunt, S N, Gleeson, J T, Lavrentovich, O D

“…Using a magnetic Frederiks transition technique, we measure the temperature and concentration dependences of splay K1, twist K2, and bend K3 elastic constants…”
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Direct observation of smectic layers in thermotropic liquid crystals by Zhang, C, Gao, M, Diorio, N, Weissflog, W, Baumeister, U, Sprunt, S, Gleeson, J T, Jákli, A

“…We demonstrate subnanometer resolution cryo-TEM imaging of smectic layers in the smectic and nematic phases of two bent-core liquid crystals. Our results show…”
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A ferroelectric nematic liquid crystal vitrified at room temperature by Adaka, A., Guragain, P., Perera, K., Nepal, P., Almatani, B., Sprunt, S., Gleeson, J., Twieg, R. J., Jákli, A.

“…Most of the current highly polar rod-shaped molecules that form ferroelectric nematic (N F ) phase do so only at elevated temperatures and multicomponent…”
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Fluctuation Modes of a Twist-Bend Nematic Liquid Crystal by Parsouzi, Z., Shamid, S. M., Borshch, V., Challa, P. K., Baldwin, A. R., Tamba, M. G., Welch, C., Mehl, G. H., Gleeson, J. T., Jakli, A., Lavrentovich, O. D., Allender, D. W., Selinger, J. V., Sprunt, S.

“…We report a dynamic light-scattering study of the fluctuation modes in a thermotropic liquid crystalline mixture of monomer and dimer compounds that exhibits…”
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Spontaneously modulated chiral nematic structures of flexible bent-core liquid crystal dimers by Salili, S. M., Ribeiro de Almeida, R. R., Challa, P. K., Sprunt, S. N., Gleeson, J. T., Jákli, A.

“…We report the induction of spontaneously undulated chiral nematic structures of liquid crystal (LC) dimers with rigid aromatic molecular arms linked by…”
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Magnetic-field induced isotropic to nematic liquid crystal phase transition by Ostapenko, T, Wiant, D B, Sprunt, S N, Jákli, A, Gleeson, J T

“…We report on measurements of magnetic-field induced nematic order in the bent-core liquid crystal 4-chlororesorcinol bis[4-(4-n-dodecyloxybenzoyloxy)…”
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Nanostructure and dielectric properties of a twist-bend nematic liquid crystal mixture by Ribeiro de Almeida, R.R., Zhang, C., Parri, O., Sprunt, S.N., Jákli, A.

“…We present freeze-fracture transmission electron microscopy (FF-TEM), dielectric spectroscopy and electro-optic measurements on a dimeric liquid crystal…”
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Manipulation of the nanoscale heliconical structure of a twist-bend nematic material with polarized light by Feng, C., Feng, J., Saha, R., Arakawa, Y., Gleeson, J., Sprunt, S., Zhu, C., Jákli, A.

“…The effect of polarized violet light on the alignment and the heliconical pitch of a liquid crystal dimer containing both sulfur atoms and an azo linkage has…”
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Giant flexoelectricity in bent-core nematic liquid crystal elastomers by Harden, J., Chambers, M., Verduzco, R., Luchette, P., Gleeson, J. T., Sprunt, S., Jákli, A.

“…Recently ferroelectric ceramic and bent-core nematic liquid crystals have demonstrated flexoelectricity (coupling between curvature strains to electric…”
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Large flow birefringence of nematogenic bent-core liquid crystals by Bailey, C, Fodor-Csorba, K, Verduzco, R, Gleeson, J T, Sprunt, S, Jákli, A

“…We have found that bent-core liquid crystalline materials show exceptionally large intrinsic flow birefringence in their isotropic liquid phase. This effect is…”
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Twist-bend nematic liquid crystals in high magnetic fields by Challa, P K, Borshch, V, Parri, O, Imrie, C T, Sprunt, S N, Gleeson, J T, Lavrentovich, O D, Jákli, A

“…We present magneto-optic measurements on two materials that form the recently discovered twist-bend nematic (N_{tb}) phase. This intriguing state of matter…”
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Viscosities of a bent-core nematic liquid crystal by Dorjgotov, E., Fodor-Csorba, K., Gleeson, J. T., Sprunt, S., Jákli, A.

“…Viscosity measurements are reported for a bent-core nematic liquid crystal, 4- chloro-1,3-phenylenebis{4-[4′-(9-decenyloxy)benzoyloxy]} benzoate (ClPbis10BB)…”
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Dynamic light scattering study of biaxial ordering in a thermotropic liquid crystal by Neupane, K, Kang, S W, Sharma, S, Carney, D, Meyer, T, Mehl, G H, Allender, D W, Kumar, Satyendra, Sprunt, S

“…Dynamic light scattering from orientational order fluctuations in a liquid crystalline tetrapode reveals successive, weakly first-order isotropic to uniaxial…”
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Elastic constants and orientational viscosities of a bent-core nematic liquid crystal by Majumdar, M, Salamon, P, Jákli, A, Gleeson, J T, Sprunt, S

“…Using a combination of dynamic light scattering and Freedericksz transitions induced in applied magnetic and electric fields, we have determined the absolute…”
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Structure and morphology of polymer-stabilized cholesteric diffraction gratings by Kang, S. W., Sprunt, S., Chien, L. C.

“…We report a study of polymer network morphology in planar diffraction gratings formed from polymer-stabilized cholesteric liquid crystals. Photopolymerizing a…”
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Viscoelastic properties of a branched liquid crystal in the nematic phase by Challa, P.K., Chakraborty, S., Breckon, R., Zhang, C., Pardaev, S., Twieg, R.W., Jákli, A., Sprunt, S.N., Gleeson, J.T.

“…We report results from a comprehensive suite of measurements, including small angle X-ray scattering (SAXS), polarising optical microscopy, dynamic light…”
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Spatial and Orientational Templating of Semiconducting Polymers in a Cholesteric Liquid Crystal by Kang, S.-W., Jin, S.-H., Chien, L.-C., Sprunt, S.

“…A one‐dimensional pattern‐forming state of a cholesteric liquid crystal (CLC) is used as a template for the self‐organization of ordered, spatially orientated,…”
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One nanosecond photon correlation spectroscopy on smectic liquid crystal films by SHARMA, S, NEUPANE, K, ADORJAN, A, BALDWIN, A. R, SPRUNT, S

“…We have extended photon correlation spectroscopy down to a one-nanosecond time scale, and applied it to a study of layer undulations in freestanding smectic-A…”
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