Results 151 to 160 of about 6,511 (198)
Dynamic Magnonic Crystals Based on Spatiotemporal Plasmon Excitation
Hybrid magnonic‐plasmonic metamaterials enabling spatiotemporal optical control of spin‐wave transport are demonstrated. These structures integrate periodic stripes of gold nanodisk arrays with low‐damping yttrium iron garnet films to realize dynamically reconfigurable magnonic crystals.
Nikolai Kuznetsov+3 more
wiley +1 more source
Aramid Nanofiber Aerogels: Versatile High Complexity Components for Multifunctional Composites
Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang+9 more
wiley +1 more source
Compact, robust, and ultralow‐loss on‐chip photonic devices are essential for densely integrated photonic chips. Here, the underlying radiation mechanism in topological valley edge states is unveiled and a new methodology of interface topology driven bandgap and wavevector engineering is proposed to thoroughly suppress their radiation losses, thereby ...
Zhonglei Shen+6 more
wiley +1 more source
Programming Defects and Cavities into Colloidal Crystals Engineered With DNA
Seed‐mediated crystallization is adapted for colloidal crystals to design cavities and defect architectures through chemically programmed DNA sequences and appropriate seed particle geometry. This synthetic approach combines tenets from both atomic and colloidal crystallization to deliberately control defect formation in superlattices and enables the ...
Rachel R. Chan+13 more
wiley +1 more source
Granular Hydrogels as Brittle Yield Stress Fluids
This work reports the Kamani‐Donley‐Rogers yield stress fluid model can describe granular hydrogel deformation. The model robustly captures transient rheology and self‐healing behavior for granular gels of varying composition using only six parameters. This framework provides new insight regarding the effect of material parameters on granular yielding ...
Gunnar B. Thompson+5 more
wiley +1 more source
Skeletal High‐Strength Nanoporous Copper and Metamaterials: The Hakka Tulou Design Heritage
Inspired by the Hakka Tulou walls, skeletal nanoporous copper is fabricated via a two‐phase MnCu precursor and controlled dealloying. This strategy achieves high strength (200 MPa) and large specific surface area (27.6 m2/g), and extends to lattice metamaterials with hierarchical porosity, offering new design pathways for multifunctional metal ...
Haozhang Zhong+8 more
wiley +1 more source
Environmental Control of Ferroelectricity in Hafnia Films
A reversible transition from nonferroelectric to ferroelectric behavior is achieved in hafnia films by modulating the surrounding atmosphere. The domain relaxation dynamics exhibit high sensitivity to environmental factors, including gas composition (ambient, N2, CO2, O2) and relative humidity, highlighting the crucial role of the measurement ...
Waseem Ahmad Wani+10 more
wiley +1 more source
A machine learning‐driven grayscale digital light processing (g‐DLP) platform integrates optimization of gradient structures and photocurable resin materials with extensive tunability. The optimized gradient structure, fabricated from developed polyurethane acrylates with enhanced damping and customizable stiffness, reduces stress concentration ...
Jisoo Nam, Boxin Chen, Miso Kim
wiley +1 more source
Semiconducting Pt Structures Stabilized on 2D MoS2 Crystals Enable Ultrafast Hydrogen Evolution
The interaction of small Pt particles with 2D MoS2 crystals can stabilize bilayer Pt structures, with a semiconducting electronic structure. The semiconducting electronic structure of Pt bilayers constitutes the so far unexplored transition domain between the bulk‐like, metallic band structure of compact nanoparticles and the discrete atomic orbitals ...
Tamás Ollár+13 more
wiley +1 more source