Electric current pulses are used to move antiskyrmions, by coupling them with a helical track. go.nature.com/3Q62OLV

Harnessing premature necking produces a rapid multiplication of dislocations to interact with local chemical orders for work hardening in VCoNi alloy, achieving ductility of 20% and yield strength of 2 GPa during room-temperature and cryogenic deformation. go.nature.com/3W15iir

The authors report coexisting ferromagnetism, polar distortion and metallicity in quasi-two-dimensional Ca3Co3O8, providing a platform to exploit magnetoelectric coupling in a metallic system. James Rondinelli Tsinghua University go.nature.com/4aTBkRB

A pH-responsive DNA origami device displays a precise geometric array of CD95 ligands to selectively induce activated immune cell death and elicit localized immune tolerance to alleviate rheumatoid arthritis. NUS go.nature.com/3VV628A

Combining fluorescence correlation spectroscopy and ultrafast spectroscopy, the sample-averaged dynamics of defects are studied with single-particle sensitivity in two-dimensional hexagonal boron nitride heterogeneous emitters. Lindenberg Ultrafast Group go.nature.com/3UbXBEN

Material Witness: Special delivery Philip Ball go.nature.com/4aMMcAK

High-phase-purity and stable 1T′-transition metal dichalcogenide monolayers are grown on 4H-Au nanowires by a facile and rapid wet-chemical method, enabling ultrasensitive surface-enhanced Raman scattering detection. CityU Hong Kong go.nature.com/3xvazVj

Using electron microscopy, a ferroelastically protected reversible polar-to-non-polar phase transition in ZrO2 is observed and the critical strain state to break the reversibility is measured. Tsinghua University go.nature.com/3TPcLhJ

Editorial: A deeper understanding go.nature.com/4aIcRyE

This Review highlights the progress in the fabrication and control of non-layered transition metal carbide/layered transition metal dichalcogenide heterostructures and the exotic properties arising from these interfaces. Penn State go.nature.com/4aCAR6R

The authors assess the current state of molecular-based computing materials and describe two path to develop this technology: continued exploration of molecular electronic properties and process development for on-chip integration. Texas A&M University CeNSEatIISc go.nature.com/3vyUnBP

A light-induced polar electronic state is generated in Cr2O3; the symmetry reduction occurs on an ultrafast timescale, ruling out contributions from the lattice or spins. UCLA go.nature.com/3VIwyC1

The authors report a laser-induced dynamic crosslinking approach with allyl sulfide groups to achieve reconfigurable high-resolution patterning of multiple liquid crystalline phases in a single film. Seoul National University go.nature.com/3PAzPiT