Results 281 to 290 of about 1,323,147 (330)

Interface‐Induced Stability of Nontrivial Topological Spin Textures: Unveiling Room‐Temperature Hopfions and Skyrmions

open access: yesAdvanced Materials, EarlyView.
The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis   +11 more
wiley   +1 more source

Confining Quantum Dots Within Covalent Organic Framework Cages for Coupled CO2 Photoreduction and Value‐Added Chemical Synthesis

open access: yesAdvanced Materials, EarlyView.
A 3D/0D S‐scheme heterojunction photocatalyst is constructed by spatially confining ZnSe quantum dots within covalent organic framework (COF) porous cages, enabling coupled CO2 photoreduction and value‐added chemical synthesis. COF porous cages serve as nanoreactors, enriching reactant concentrations, and the S‐scheme heterojunction facilitates charge ...
Jingzhao Cheng   +9 more
wiley   +1 more source

The origin of color categories. [PDF]

open access: yesProc Natl Acad Sci U S A
Garside DJ   +3 more
europepmc   +1 more source

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