Volume 15 Issue 11, November 2020

Both extrinsic and intrinsic factors determine the properties of ferroic materials and are difficult to disentangle. This study on artificial crystals of planar nanomagnets with well-defined, tuneable magnetic interactions unveils the intrinsic correlations between microscopic interactions and macroscopic properties such as the domain size and morphology or the domain-wall mobility.

Interlayer excitons in bilayer MoS₂ exhibit both a high oscillator strength and highly tunable energies in an applied electric field.

Optical nanotweezers trap and dynamically manipulate nanoscale objects far away from the laser spot.

Genetically improved artificial metalloenzymes in DNA protocells convert signalling molecules into DNA-interacting metabolites that induce downstream growth, functional adaptation and fusion processes inside protocells and between protocells.

The strength of the plasmonic field between a plasmonic particle and a Au surface can be measured at ~2-Å resolution by following the Raman peaks of a suitably labelled self-assembly monolayer.

Planar metasurfaces are a valuable tool to achieve custom-tailored photoluminescence from quantum emitters. The incorporation of a WSe₂ monolayer into a photonic crystal slab with geometric phase defects enables spin-dependent manipulation of the emission from valley excitons of the WSe₂, as well as from randomly placed quantum emitters.

Two-dimensional conjugated metal–organic frameworks used as an electron-extraction layer enable the realization of highly stable perovskite solar cells with minimized lead ion leakage.

A silk drive can store digital and biological information with a capacity of about 64 GB inch⁻².

A complex-amplitude metasurface hologram is conceptually designed and three-dimensionally printed. The device allows for high-bandwidth orbital angular momentum multiplexing holography and holographic video displays.

Quality factors as high as 2,500 can be achieved for subwavelength phase gradient metasurfaces.