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A long-lived photoinduced metastable state in a quasi-one-dimensional cuprate, Sr₁₄Cu₂₄O₄₁, is reported.

Studying the properties of dense plasmas is challenging due to strong interactions between electrons and ions, and numerical methods overcome this difficulty using a static thermostat. Here the authors predict a strong diffusive ion mode at low energy by including dissipative processes in the model.

Defects can significantly alter the physical properties of materials. A detailed experimental analysis of defects in carbon nanotubes enables the relationship between the atomic response and the broadly available macrosopic behaviour to be captured.

The authors report that tensile strain applied to CsV₃Sb₅ strongly suppresses the charge-density-wave (CDW) gap, increases the mass of the fermions at the higher-order van Hove singularity (HO-VHS) and drives the energy of the HO-VHS towards the Fermi energy. Further, they suggest an important role of the HO-VHS in superconducting pairing.

The authors report upconversion in few-layer transition metal dichalcogenides, and attribute it to a resonant exciton-exciton annihilation involving a pair of dark excitons with opposite momenta, followed by the spontaneous emission of upconverted bright excitons.

Experimental observations and theoretical analysis provide evidence that the spin polarization of the spin-spiral type II multiferroic NiI₂ exhibits p-wave magnetism and its spin chirality is related to ferroelectric polarization, which can be electrically controlled. 

σ-Complexes of transition metals are key intermediates in metal-mediated bond activation, but have traditionally been isolable only when chelating or when one of the participating atoms is hydrogen. Here, a complex is isolated with an unsupported borirene ligand bound not through the unsaturated C=C bond, but exclusively via a B–C single bond.

Detailed knowledge of the low-energy electronic structure is required to understand the Mott insulating phase of Ca₂RuO₄. Here, Sutter et al. provide directly the experimental band structure of the paramagnetic insulating phase of Ca₂RuO₄and unveil the electronic origin of its Mott phase.

In the Kondo effect, a bath of conduction electrons screens a localized magnetic moment. Here, the authors demonstrate Kondo screening of a normally isolated 4f-like moment in a magnetic molecule on a Cu(001) surface that is modulated by strong ligand-mediated coupling.

Engineered, bifunctional receptors present antigens and initiate signaling in response to binding to the cognate T cell receptor. Libraries built with SABRs can screen thousands of epitopes for the discovery of T cell target antigens.

Warm dense silica is a key component in rocky planets’ mantles, but reproducing the relevant conditions in experiments is challenging. Here the authors use a double-shock technique to achieve such conditions and measure the reflectivity in situ, providing insight into the conductivity and its possible impact on dynamo processes in super-Earths’ mantles.

Stepwise deuteration of protonated methane CH₅⁺ — a fluxional structure that undergoes ‘hydrogen scrambling’ — leads to dramatic changes in the infrared spectra of the isotopologues. The spectra can be assigned using ab initio quantum simulations that account for the non-classical occupation — by H and D atoms — of topologically different sites within the molecule.

Small clusters of magnetic atoms can behave in very different ways to those same atoms in bulk. Arranging iron atoms one by one into complex but well-defined patterns on a copper surface enables the construction of nanoscale magnetic structures with tailored characteristics.

Efficient manipulation of magnetic order with electric current pulses is desirable for achieving fast spintronic devices and the Rashba-Edelstein effect provides a mean to achieve staggered spin-orbit torques. Here the authors show a generalized Rashba-Edelstein effect generating not only spin polarization but also orbital polarization.

Dressing is a concept used to describe moderately interacting electrons. Here authors present the notion of dressed spin-orbit 3/2 moments and how this picture breaks down with increasing electronic interactions across group-5 lacunar spinel magnets.

The orbital structure of charge density waves on a square lattice has attracted renewed interest. Here, the authors use scanning tunneling microscopy to visualize and interpret the charge density wave in CeSbTe using p-orbital bond density waves.

High-harmonic generation in solids is related to the carrier dynamics and can be used to probe dynamic processes. Here, Klemke et al. show that the polarization states of high harmonics generated from silicon and quartz are determined by the crystal symmetries but can also be dynamically controlled.

Topologically trivial and Majorana bound states can show spectral weight near the ends of a chain of magnetic atoms on a superconductor. Here, the authors disentangle the two contributions by augmenting a spin chain with orbitally-compatible nonmagnetic atoms, where a persistent zero-energy spectral weight at the transition between the two parts is observed.

Charged particle interaction and energy dissipation in plasma is fundamentally interesting. Here the authors study proton stopping in laser-produced plasma for the moderate to strong coupling with electrons.

To determine the topological character of a magnetic structure, one has to rely on techniques based on spin magnetism. Here, the authors study chirality-driven orbital moment physics and propose a new experimental protocol for the identification of topological magnetic structure, based on soft X-ray spectroscopy.

Among the first-row p-block elements that can form neutral triple-bonded species (boron, carbon, nitrogen and oxygen), all combinations have been realized except that of boron and carbon. Here the synthesis of a neutral, uncoordinated boryne is described, closing the remaining gap in neutral first-row p-block compounds with triple bonds.

Photoionization time delays provide insights on the interaction of photon with the electrons. Here the authors explore the role of the molecular potential to the attosecond time delays in the photoionization of CF4 molecule.

Europium-based materials are interesting for magnetic devices because divalent europium carries a large spin-magnetic moment. Chikina et al. show that the non-magnetic Si-Rh-Si surface trilayer of the antiferromagnet EuRh₂Si₂reveals a surface state with large spin splitting controllable by temperature.

Disassembly of three-dimensionally ordered materials generates nanoparticles with new structural and physicochemical properties. Here the authors show a fragmentation strategy applied to a perovskite material leading to nanostructures with improved catalytic activity in the methane combustion.

Recent experiments with plasmonic nanostructures have found phenomena that cannot be explained classically, necessitating new theoretical models. Toscano et al. present a self-consistent hydrodynamic theory that describes both the nonlocal response and the electronic spill-out for noble and simple metals.

Efficient photocatalytic conversion of CO₂ into syngas is a promising but challenging technology. Here, the authors report a phase transformation method to produce Co sites with tunable electron localization on multi-dimensional architecture framework that can improve the syngas evolution kinetics.

A main challenge for the use of CAR-T in solid tumours is the identification of surface proteins as feasible targets. Here, the authors show TYRP1 as a target for CAR-T cell therapy in preclinical models of cutaneous, acral and uveal melanoma.

Reactions with non-linear kinetics, such as chemical clocks, are reasonably common but only well understood in the liquid phase. Here, the authors report and rationalize a chemical clock reaction taking place in a solidifying metal-organic framework.

The Gilbert damping constant, a fundamental parameter to describe magnetization dynamics, is an isotropic scalar for most magnetic materials. Now, at a metal/semiconductor interface, the emergence of anisotropic magnetic damping has been observed.

In this cross-sectional study, the authors used structural MRI to compare subcortical volumes, cortical thickness and surface area between early-onset anorexia nervosa, avoidant/restrictive food intake disorder and typically developing young individuals.

Understanding excitonic optical excitations is integral to improving optoelectronic and photovoltaic semiconductor devices. Here, Bennecke et al. use photoemission exciton tomography to unravel the multiorbital electron and hole contributions of entangled excitonic states in the prototypical organic semiconductor C60.