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In multi-principal-element alloys the local chemical order is of increasing research interest for understanding their structures and correlation with properties, requiring systematic exploration with definitive and quantitative characterizations.
In many concentrated alloys of current interest, the observation of diffuse superlattice intensities by transmission electron microscopy has been attributed to chemical short-range order. We briefly review these findings and comment on the plausibility of widespread interpretations, noting the...
By monitoring the lattice dynamics of single-crystal argyrodite Ag8SnSe6 through the superionic transition, low thermal conductivity and ionic transport are found to arise from extreme phonon anharmonicity.
Metamaterial adhesives with nonlinear cut architectures provide strong and reversible adhesion, directionality and spatially programmable adhesive strength.
Circularly polarized photoexcitation initiates spin domain formation in polycrystalline halide perovskite films with strong spin–orbit coupling and local inversion symmetry breaking, as revealed by ultrafast optical microscopy.
Detailed transmission electron microscopy imaging of the dynamics of domain walls in twisted van der Waals ferroelectrics is obtained, capturing the transition to a hysteretic response.
Quantum dots are engineered to use dopant states to achieve substantially enhanced impact ionization, which is potentially useful for light-harvesting applications.
An apparent quirk of mathematics draws on a symmetry and resolves the issue of how to determine the equilibrium shape of crystals of two-dimensional materials with asymmetric terminations.
An electric field is found to be capable of controlling dislocation movement in semiconducting zinc sulfide, as observed in real time by in situ transmission electron microscopy.
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