Results 151 to 160 of about 3,171,010 (214)

Electrically Tunable Heliconical Smectic Superstructure in Polar Fluids

Advanced Materials, Volume 38, Issue 53, 21 September 2026.
Strong dipole–dipole interactions give rise to an emergent polar smectic phase with spontaneous chiral symmetry breaking. This resulting polar heliconical smectic superstructure enables novel functionalities in polar fluids, such as color modulation driven by electric field strength and frequency, as well as second‐harmonic generation amplification ...
Hiroya Nishikawa, Dennis Kwaria, Atsuko Nihonyanagi, Koki Sano, Hiroyuki Yoshida, Fumito Araoka   +5 more
wiley   +1 more source

Turbulence-to-order transitions in activity-patterned active nematics

Physical Review E
We numerically study two-dimensional active nematics with periodic activity patterning. For stripes of activity, we observe a transition from two-dimensional to one-dimensional active turbulence as the maximum active force and distance between activity stripes increases, followed by a transition to stable vortices ordered antiferromagnetically along ...
Cody D. Schimming, C. J. O. Reichhardt, C. Reichhardt   +2 more
openaire   +3 more sources

Coating‐Free Nanoscratching for Liquid‐Crystal Alignment on PCB‐Compatible Millimeter‐Wave Reflective Unit Cells

Advanced Materials Technologies, Volume 11, Issue 18, 18 September 2026.
Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma, Ga‐Yeong Park, Geunjung Lee, Hyo‐Won Lee, Jong‐Won Yu, Dong Ki Yoon   +5 more
wiley   +1 more source

On the temperature of an active nematic

We employ a novel hydrodynamic framework for active matter coupled to an environment to study the local temperature of an active nematic, assuming proximity to thermal equilibrium. We show that, due to the mechanosensitivity of fuel consumption, linearized temperature correlations in a homogeneous active nematic steady state remain unaffected by ...
Armas, Jay, Jain, Akash, Lier, Ruben
openaire   +2 more sources

Electrohydrodynamically Driven Broadband and Color‐Shifting in Cholesteric Liquid Crystals

Advanced Optical Materials, Volume 14, Issue 33, 4 September 2026.
Ion‐driven electrohydrodynamic effects enable dynamic photonic bandgap modulation in cholesteric liquid crystals under low‐frequency AC driving. By regulating ion‐mediated disturbance of the helical structure, this approach produces two reversible optical responses: rapid color shifting across the visible spectrum and broadband reflection spanning the ...
Cheng‐Kuan Wu, Jin‐Yu Chen, Li‐Min Chang, Cheng‐Chang Li, Kuan‐Wu Lin, Duan‐Yi Guo, Tsung‐Hsien Lin   +6 more
wiley   +1 more source

Electrical and optical effects in hybrid liquid crystal cells

, 2011
The main aim of this project was to characterise electrical and optical effects in hybrid liquid crystals. Hybrid form of liquid crystals was achieved by using photoconducting alignment layers in liquid crystals cells and also by including ferroelectric,
Herrington, Mark
core   +1 more source

Chiral‐Induced Spin Selectivity Effect in a 1 nm Thin 1,1′‐Binaphthyl‐2,2′‐diyl Hydrogenphosphate Self‐Assembled Monolayer on Nickel Oxide

Advanced Science, Volume 13, Issue 52, 18 September 2026.
A self‐assembled monolayer (≈0.9 nm) of an axially chiral binaphthol phosphoric acid derivative on a ferromagnetic Ni/NiOx substrate shows chiral‐induced spin selectivity (CISS) magnetoresistance of 50%–80%. This thermally and chemically robust functional stack shows the way towards practical spintronic devices based on the CISS effect.
Abin Nas Nalakath, Christian Pfeiffer, Anu Gupta, Franziska Schölzel, Michael Zharnikov, Georgeta Salvan, Ron Naaman, Marc Tornow, Peer Kirsch   +8 more
wiley   +1 more source

Orientational ordering in active nematic solids

ArXiv
In vivo and in vitro systems of cells and extra-cellular matrix (ECM) systems are well known to form ordered patterns of orientationally aligned fibers. Here, we interpret them as active analogs of the (disordered) isotropic to the (ordered) nematic phase transition seen in passive liquid crystalline elastomers.
Yang, Haiqian, Guo, Ming, Mahadevan, L.
openaire   +3 more sources

Topological and activity-induced constraints in nematic liquid crystals

Active matter encompasses a broad class of out-of-equilibrium materials with internally-driven components. A trademark feature of these materials is that energy injections at microscopic scales develop into complex pattern formation and collective flows ...
Head, Louise Catherine
core   +1 more source

Multilayer Mechanical Transduction Activates Compression‐Mode Mechano‐Optical Response in Chiral Nematic Liquid Crystal Elastomers

Aggregate, Volume 7, Issue 9, September 2026.
Multilayer chiral nematic liquid crystal elastomer films convert compressive loading into optically active deformation through compression‐to‐tension mode conversion. Compliant PDMS layers mediate in‐plane expansion and thickness reduction of the photonic elastomer, producing reversible color shifts under compression.
Ryota Morimoto, Maki Ogata, Kohsuke Matsumoto, Kazuhiro Shimonomura, Osamu Tsutsumi   +4 more
wiley   +1 more source