Results 61 to 70 of about 38,577 (260)

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

Intrinsic and extrinsic effects on the ferroelectric switching of thin poly(vinylidene fluoride/trifluoroethylene) copolymer films

APL Materials, 2016
In this paper, intrinsic and extrinsic factors dependent switching process in P(VDF-TrFE) thin films is investigated through time domain polarization measurements. The thinning-induced increase of switching time is observed for samples below 80 nm due to
Manfang Mai, Shanming Ke, Peng Lin, Xierong Zeng   +3 more
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Research on polarization switching dynamics in barium titanate ferroelectric tunnel junctions

Gongneng cailiao yu qijian xuebao
To address the high energy consumption and low efficiency caused by the data transfer bottleneck between processors and memory in von Neumann architectures, this study explores a neuromorphic computing solution based on ferroelectric tunnel junctions ...
Zhan-feng ZHANG, Cao-zhuang DENG, Chen-xi WANG, Min-min ZHU   +3 more
doaj   +1 more source

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

Advanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo, Xuke Qiu, Runchen Zhang, Qihao Han, Liangyu Deng, Yishun Lu, Zimo Zhao, Mengmeng Li, Waqas Kamal, Junseok Ma, Yongge Ma, Steve J. Elston, Alfonso A. Castrejón‐Pita, Stephen M. Morris, Chao He   +14 more
wiley   +1 more source

Polarization switching of HfO2 ferroelectric in bulk and electrode/ferroelectric/electrode heterostructure

npj Computational Materials
HfO2-based ferroelectric films are of great potential for the application of non-volatile information storage. In this paper, to understand the polarization switching properties of ferroelectric HfO2, the 180° polarization switching of HfO2 film in the ...
Xinpeng Mu, Yao Wu, Binjian Zeng, Jie Jiang, Yichun Zhou, Lu Yin, Min Liao, Qiong Yang   +7 more
doaj   +1 more source

On ultrafast polarization switching in ferroelectrics

, 2020
Latex file, 3 ...
Yukalov, V. I., Yukalova, E. P.
openaire   +2 more sources

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Design, Simulation, and Construction of a Novel Adjustable Wideband and Multi-Polarized Unit Cell of Reflect-Array Antenna by One or Two Control Bits in X and Ku Bands

IEEE Access
The purpose of this paper is to design and simulate a unit cell with wideband and multi-polarization for a reflect-array antenna. The bandwidth of the proposed structure is greater than 70% of X and Ku bands for satellite applications.
Mohammad Mansourinia, Ramezan Ali Sadeghzadeh   +1 more
doaj   +1 more source