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The antiferromagnetic material haematite, named for its blood-red colour, hosts swirling spin vortices termed merons. The rotation sense of such antiferromagnetic vortices has now been imaged in real space.
Inspired by the observed coherent interface between hexagonal α-Fe2O3 and tetragonal fluorine-doped SnO2, an oxygen sublattice-matching paradigm is proposed to grow textured films on lattice-mismatched substrates. Through assessing the similarity of Voronoi cells for sublattices, this approach offers opportunities to synthesize (semi)coherent heterostructures and textured films.
An important but difficult separation, the removal of carbon monoxide from humid gas mixtures comprising oxygen, nitrogen and hydrocarbons, is addressed by exploiting Cu(I) coordination chemistry and framework flexibility.
Engineered ligand shells on gold nanoclusters utilizing molecular motion improve the thermal conductance between the cluster and the solvent, increasing thermal stability and enhancing performance in the photothermal treatment of cancerous tumours.
Incorporating additives that contain hydrogen-bonding nanochannels creates nanoconfined polymer gels that are highly stretchable, elastic and insensitive to notch propagation.
Processible centimetre-scale porous glasses using zeolitic imidazolate framework (ZIF) materials are developed, while fine-tuning of the processing conditions allows control of pore size and molecular sieving properties.
Orthogonally twisted CrSBr ferromagnetic monolayers with in-plane Ising anisotropies are found to exhibit multistep magnetoresistance switching with a magnetic hysteresis opening. This work emphasizes the role of spin dimensionality in two-dimensional magnets, and the potential of orthogonal and large-twist-angle van der Waals magnets.
An all-electric switch of the persistent electron swirl in a quantum anomalous Hall state enables researchers to flip the electronic chirality of this quantum state.
By forming a heterostructure interface, and by judicious choice of crystallographic orientation, piezoelectrics are developed that show expansion or contraction along all axes on application of an electric field.
Hybrid organic–inorganic perovskite materials have promise as the photovoltaic technology of the future. A method for spectroscopic optical control reveals how the structural dynamics and vibrations of a perovskite’s organic cations affect the electronic performance of working photovoltaic devices.
Oxidation can degrade the properties and functionality of three-dimensional bulk metallic glasses. However, the formation of percolating oxide networks in metallic glass nanotubes or nanosheets can induce interesting properties, such as a recoverable strain of 10–20% and elastic modulus of 20–30 GPa, which are rarely observed in their bulk counterparts.
Post-infusion poly(ethylene glycol) surface modification of chimeric antigen receptor (CAR)-engineered T cells and a subcutaneous chemokine-adsorbing hydrogel address cytokine release syndrome and the neurotoxicity side effects of CAR T cell therapy against tumours.
Polymers made by click chemistry with spirocyclic building blocks form membranes that separate the components of crude oil based on molecular size and type, potentially using far less energy than distillation. Key enablers of this separation are moderate levels of polymer dynamic motion and frustrated chain packing.
A compact, time- and energy-efficient computing architecture — based on ferroelectric-defined reconfigurable two-dimensional photodiode arrays — is shown to be capable of in-memory sensing and computing.