Results 41 to 50 of about 14,690 (264)

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Dipolar spin waves in uniaxial easy-axis antiferromagnets: A natural topological nodal-line semimetal

open access: yesPhysical Review Research, 2020
The existence of magnetostatic surface spin waves in ferromagnets, known as the Damon-Eshbach mode, was recently demonstrated to originate from the topology of the dipole-dipole interaction.
Jie Liu, Lin Wang, Ka Shen
doaj   +1 more source

Chirality at the Nanoparticle Surface: Functionalization and Applications

open access: yesApplied Sciences, 2020
Chiral molecules, such as amino acids and carbohydrates, are the building blocks of nature. As a consequence, most natural supramolecular structures, such as enzymes and receptors, are able to distinguish among different orientations in space of ...
Muhammad Shajih Zafar, Andrea Ragusa
doaj   +1 more source

Chirality inversion of Majorana edge modes in a Fu–Kane heterostructure

open access: yesNew Journal of Physics, 2021
Fu and Kane have discovered that a topological insulator with induced s -wave superconductivity (gap Δ _0 , Fermi velocity v _F , Fermi energy μ ) supports chiral Majorana modes propagating on the surface along the edge with a magnetic insulator. We show
A Donís Vela   +3 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Curvilinear magnetic effects in helicoid nanotubes

open access: yesnpj Spintronics
We report the fabrication and characterization of ferromagnetic helicoid nanotubes with a tunable surface curvature and chirality. Through combining focused electron beam induced deposition and magnetron sputtering we realize these complex curvilinear ...
John Fullerton, Charudatta Phatak
doaj   +1 more source

Strong interfacial Dzyaloshinskii–Moriya induced in Co due to contact with NiO

open access: yesScientific Reports, 2022
The magnetic properties of NiO/Co/Pt as a function of Co layer thickness were investigated by polar magneto-optical Kerr effect (PMOKE) (magnetometry and microscopy) and Brillouin Light Scattering (BLS) spectroscopy.
M. Kowacz   +10 more
doaj   +1 more source

Surface states and chiral symmetry on the lattice [PDF]

open access: yesPhysical Review D, 1994
In a Hamiltonian formalism we study chiral symmetry for lattice Fermions formulated in terms of Shockley surface states bound to a wall in an extra spatial dimension. For hadronic physics this provides a natural scheme for taking quark masses to zero without requiring a precise tuning of parameters.
Creutz, Michael, Horvath, Ivan
openaire   +3 more sources

Versatile Pneumatic Twisted Coiled Actuators Enabled by Fiber‐Polymer Composite Fabrication

open access: yesAdvanced Functional Materials, EarlyView.
This work reports composite Pneumatic Twisted Coiled Actuators with embedded Kevlar fibers that convert pneumatic or hydraulic pressure into powerful linear motion. A novel precise manufacturing technique is used to systematically explore how design variables influence actuator mechanics and dynamics.
William J. Townsend   +5 more
wiley   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

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