Archive for the ‘2011’ Category
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- Molecular dynamics simulations of nematic phases formed by cyano-biphenyl dimers
- Polar molecular ordering in the Nx phase of bimesogens and enantiotopic discrimination in the NMR spectra of rigid prochiral solutes.
- Molecular Interactions in Chiral Nematic Liquid Crystals and Enantiotopic Discrimination through the NMR Spectra of Prochiral Molecules I: Rigid Solutes
- A molecular theory of nematic–nematic phase transitions in mesogenic dimers
- On the structure of the Nx phase of symmetric dimers: inferences from NMR
- Surface-Induced Ordering on Model Liquid Crystalline Dendrimers
- On the structure of the Nx phase of symmetric dimers
- Phase diagram of hard board like colloids from computer simulations
PRE: Liq. Cryst.
- Structural parameters of twist-bend nematics and splay-bend nematics in Dozov's theoryAuthor(s): Michał Szmigielski and Mariola BuczkowskaThis paper presents the results of numerical calculations revealing how the structural parameters (i.e., the pitch ${p}_{\mathrm{TB}}$, the spatial period ${p}_{\mathrm{SB}}$, and the tilt angle ${θ}_{\mathrm{TB}}$ or ${θ}_{\mathrm{SB}}$) of twist-bend nematics (${N}_{\mathrm{TB}}$) and splay-bend n…[Phys. […]
- Energy dissipation mechanism of annihilating reverse tilt domains for various applied voltagesAuthor(s): Takuya YanagimachiWhen a voltage is applied to a uniformly aligned nematic liquid crystal, a characteristic texture designated as reverse tilt domain (RTD) appears. The RTD, surrounded by a domain wall, gradually shrinks and finally disappears. The domain wall splits into a pair of disclination lines by increase of t…[Phys. Rev. E 109, 044703] Pub […]
- Anchoring-mediated stick-slip winding of cholesteric liquid crystalsAuthor(s): Weichao ZhengThe stick-slip phenomenon widely exists in contact mechanics, from the macroscale to the nanoscale. During cholesteric-nematic unwinding by external fields, there is controversy regarding the role of planar surface anchoring, which may induce discontinuous stick-slip behaviors despite the well-known…[Phys. Rev. E 109, 044701] Publishe […]
- Modeling the light-powered self-rotation of a liquid crystal elastomer fiber-based engineAuthor(s): Yong Yu, Haoyu Hu, Yuntong Dai, and Kai LiSelf-oscillating systems possess the ability to convert ambient energy directly into mechanical work, and new types of self-oscillating systems are worth designing for practical applications in energy harvesters, engines and actuators. Taking inspiration from the four-stroke engine. A concept for a …[Phys. […]
- Glassy relaxation in a de Vries smectic liquid crystal consisting of bent-core moleculesAuthor(s): Vishnu Deo Mishra, G. Pratap, and Arun RoyWe report experimental investigations of a liquid crystal comprising thiophene-based achiral bent-core banana shaped molecules. The compound exhibits the following phase sequence on cooling: Isotropic (517.4 K), $N$ (514.9 K), de Vries SmA (402 K), SmC. Practically no layer contraction was observed …[Phys. […]
- Mixing twist-bend and ferroelectric nematic liquid crystalsAuthor(s): Abinash Barthakur, Bidisha Bag, Santhegudda Jayaramappa Shivaraja, Jakub Karcz, Przemyslaw Kula, and Surajit DharaTwist-bend (${\mathrm{N}}_{\mathrm{tb}}$) and ferroelectric (${\mathrm{N}}_{\mathrm{F}}$) nematic liquid crystals exhibit several novel effects and new physical properties. Here, we report experimental studies on the phase diagram and […]
- Synchronous behaviors of three coupled liquid crystal elastomer-based spring oscillators under linear temperature fieldsAuthor(s): Haiyang Wu, Biao Zhang, and Kai LiSelf-oscillating coupled systems possess the ability to actively absorb external environmental energy to sustain their motion. This quality endows them with autonomy and sustainability, making them have application value in the fields of synchronization and clustering, thereby furthering research an…[Phys. Rev. E […]
- Dynamics of viscous droplet coalescence in the confined geometry of optical cellsAuthor(s): P. V. Dolganov, N. A. Spiridenko, and A. S. ZverevThe dynamics of quasi-two-dimensional coalescence of isotropic droplets in nematic liquid crystal environment was studied. Investigations were made in confined geometry of a Hele-Shaw optical cell with different transverse droplet sizes. The existence of three distinct dynamic regimes was found for […]
- Escape from the second dimension: A topological distinction between edge and screw dislocationsAuthor(s): Paul G. Severino and Randall D. KamienVolterra's definition of dislocations in crystals geometrically distinguishes edge and screw defects according to whether the Burgers vector is perpendicular or parallel to the defect. A homotopy-theoretic analysis of dislocations as topological defects fails to differentiate edge and screw. Here we…[Phys […]
- Transformation of polar nematic phases in the presence of an electric fieldAuthor(s): A. V. Emelyanenko, V. Yu. Rudyak, S. A. Shvetsov, F. Araoka, H. Nishikawa, and K. IshikawaOnly a few years have passed since the discovery of polar nematics, and now they are becoming the most actively studied liquid-crystal materials. Despite numerous breakthrough findings made recently, a theoretical systematization is still lacking. In the pres […]
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