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Kwak et al. report AC magnetic parallel dipole line Hall measurements on electrochemical random-access memory based on WO_3-x, which determine the oxygen donor level and reveal that conductance potentiation even at low temperature is caused by an increase in both mobility and carrier density.

By applying a magnetic field to an atomic vapour, it is shown that the large bandwidth of off-resonance slow-light media can be combined with the Faraday effect to realize a high-bandwidth dispersive probe for atomic systems. This will open up the possibility of probing atomic dynamics on a nanosecond timescale.

Froths and foams are complex structures, particularly those that disappear irreversibly. Superconducting froth, however, can be reversibly controlled by several external parameters, so it may help quantify froth dynamics across different systems.

A multi-ancestry genome-wide association study for age at menarche followed by fine mapping and downstream analysis implicates 665 pubertal timing genes, such as the G-protein-coupled receptor 83 (GPR83) and other genes expressed in the ovaries involved in the DNA damage response.

Although poly(vinylidene fluoride) is a well-known organic ferroelectric, its utilization in microelectronics has been hampered by the difficulty in obtaining uniform thin films. By exploiting a high-temperature deposition approach, smooth and thin films of the ferroelectric δ-phase polymorph of this material are now obtained, showing their potential for capacitors and non-volatile memories.

Skyrmions are localized magnetic textures that form lattices in some magnetic materials. Neutron spin-echo measurements have now been able to observe topological effects on the low-energy collective excitations of a skrymion lattice.

Discussions at a recent conference on microscopy technology dissemination spotlighted the importance of setting technology adoption capable of producing scientific outcome as the end goal. This Comment examines current global efforts in microscopy dissemination and summarizes the challenges and paths forward.

Although 2D topological insulators have been experimentally realized, their 1D counterparts remain difficult to investigate. Here, the authors report the observation of 0D topological states localized at the ends of the zigzag-terminated germanene nanoribbons with a width below ∼2 nm, indicating the emergence of a 1D topological insulator.

Conventional methods for directed colloidal assembly struggle with temporal control and tunability of assembly states. This study demonstrates transient colloidal crystals that autonomously form, disassemble, and reassemble in response to an electrochemical reaction network, achieving wide tunability of lifetimes using multimode electric potentials.

An investigation of muon spin relaxation shows time-reversal symmetry-breaking charge order, intertwined with correlated superconductivity, due to orbital currents in the kagome superconductor KV₃Sb₅.

Gut microbiota contribute to the pathogenesis of ulcerative colitis (UC), but the molecular mechanisms are still unclear. Here the authors show that colonic fluid from patients with UC is enriched for bacteria extracellular vesicles (BEV) coated with host IgA, and that these IgA-coated BEV may activate CD89⁺ immune cells to aggravate inflammation and colitis in mouse models.

Early stellarator designs suffered from high particle losses, an issue that can be addressed by optimization of the coils. Here the authors measure the magnetic field lines in the Wendelstein 7-X stellarator, confirming that the complicated design of the superconducting coils has been realized successfully.

The isolation of compounds featuring an actinide–actinide bond is challenging. Now a well-defined Th(III) dimer with a Th–Th two-centre one-electron (2c-1e) σ bond and a 2c-1e π bond is synthesized. Theoretical and magnetic studies show that the open-shell singlet ground state and the two formal Th(III) centres exhibit strong antiferromagnetic coupling.

A 2D magnet CrSBr has attracted interest for applications in spintronics due to its high critical temperature and interesting magneto-electrical properties. Here the authors report a detailed study of its magnetic and structural phases and uncover a hidden magnetic order inside the magnetically-ordered phase.

The biomechanical mechanisms enabling the invasive growth of brain tumors remain opaque. Here, Junqueira Alves et al. reveal that the guidance receptor Plexin-B2 controls membrane tension, facilitating confined migration of brain tumor cells.

Helimagnetic materials host a twisted magnetic texture, realizing screws, cycloids, and cones. While helimagnets are common in three dimensional materials, layered van der Waals helimagnets are exceedingly rare. Here, Akatsuka et al. demonstrate conical ordering in the easily cleavable magnet DyTe3.

Controlling sound waves is important to build better acoustic devices, and much can be learnt from optical approaches. To this end, Quan et al.show how periodic arrays of Helmholtz resonators on metal plates can produce dipole-like radiation patterns for sound.

Using the European XFEL free-electron laser, researchers demonstrate terawatt-scale, attosecond hard X-ray pulses. Ten pulse trains per second, each containing hundreds of pulses at megahertz repetition rates, are achieved. Such short and intense pulses at high repetition rate enable unprecedented damage-free X-ray measurements with attosecond temporal resolution.

Steric effects in a fundamental energy-transfer reaction at collision energies from over 1,000 K down to 20 mK have now been studied. At high energies a pronounced dependence of the reactivity on the reactant orientation is observed, but this effect is not present at the lowest energies because of dynamic reorientation.

Quasi-three-dimensional plasmonic crystals have potential uses in miniaturized photonics. In this study, a method is described to enhance plasmonic resonance in the crystals by coupling them to optical modes of Fabry–Perot type cavities, with possible applications in photonic and sensor components.

The presence of magnetic fields in protostellar jets has been predicted theoretically, but its experimental confirmation has been elusive so far. Here, the authors report the detection of SiO line polarisation in the HH 211 protostellar jet, indicative of the onset of magnetic fields.

Early detection of type 1 diabetes can facilitate early intervention. Here, the authors present a pQTL map in newborns and integrate it with genetic data to identifiy proteins that may play a causal role in the development of type 1 diabetes.

Here, the authors profile bacterial engraftment in UC patients receiving FMT from a single donor and placebo samples to estimate noise, showing a significant level of false-positive engraftment, which confounds the prediction of true engraftment, while analyzing engraftment across multiple patients from a single donor enhances the accuracy of detection.

A self-supervised approach to learning from 24 million spectra generates a foundation model for detecting and characterizing small molecules by tandem mass spectrometry.

Spin liquids are predicted to emerge in materials that combine strong electronic correlations with geometric frustration. Evidence has now been found for a spin liquid state in the triangular-lattice material NaRuO₂.

Human lens clarity and function depends on well-organized cell junctions. Here, the authors used MicroED to reveal the 3.5 Å structure of MP20, showing that MP20 tetramers form adhesive junctions essential for maintaining lens transparency

The magnetic field imaging on microscopic scale is of great importance to fundamental research as well industrial applications. Here the authors show the capability to visualize and characterize the magnetic properties with 100-micrometer resolution in macroscopic samples using a cold polarized neutron beam in neutron grating interferometry.

Proximity ferroelectricity is reported in wurtzite heterostructures, which enables polarization reversal in wurtzites without the chemical or structural disorder that accompanies elemental substitution.

How NRXN1 variants affect multiple neuropsychiatric disorders is explored.

Injectable bioelectronics face low conductivity due to poor polymer dispersibility. Here, authors engineer dopants in conductive polymers to boost their water dispersibility 5-fold and conductivity 20-fold, enabling biodegradable, 3D-printable hydrogels for wearables and implantable devices.

The interaction of magnetic fields embedded in plasmas is central to many astrophysical phenomena. Here, authors show that plasma flow disruption caused by enhanced magnetic field is unexpectedly small compared to magnetic field compression by shocks, which significantly limits the growth of field strength.

The interplay between superconductivity and competing orders in multi-layered cuprates can shed light on the nature of the superconducting pairing. Here, the authors report on the coexistence of antiferromagnetic and charge orders in different CuO2 planes in a tri-layer cuprate, pointing to a magnetically-mediated mechanism.

Skyrmions are topological spin textures and are of great interest due to their impressive stability. Here, by sweeping an applied magnetic field, the authors observe a change in the skyrmion lattice structure, shedding light on the relation between skyrmion size and stability.

Early visual cortical responses increase with event duration and frequency, while later timing-tuned responses quantify event timing. Here, the authors show timing tuning gradually emerges up the visual hierarchy, and separates temporal and spatial event features.

A demonstration of the ability to coherently control the collective attosecond dynamics of relativistic electrons driven through a plasma by an intense laser represents an important step in the development of techniques to manipulate and study extreme states of matter.

The role of wild and domesticated animals on alpine ecosystems is unclear. Here, the authors use sedaDNA from 14 European alpine lakes to demonstrate a positive association between wild and domesticated animal and plant diversity through the past 14 thousand years.

Recently, periodic arrays of thermally active nanomagnets with bistable magnetization have been built which mimic the behaviour of frustrated magnets and model Ising systems. Here, the authors use muon spin relaxation to evidence thermodynamic phase transitions in an artificial kagome ice system.

Wood density is a key control on tree biomass, and understanding its spatial variation improves estimates of forest carbon stock. Sullivan et al. measure >900 forest plots to quantify wood density and produce high resolution maps of its variation across South American tropical forests.

How the brain maintains a stable world model while swiftly adapting to environmental changes remains unclear. Here, the authors propose that the cerebellum drives cortical dynamics, enabling rapid task acquisition, switching, and consolidation.

Magnetic skyrmions typically form hexagonal crystals with either uniquely Bloch or Néel-type textures. Here, a polar magnet EuNiGe₃ is shown to host two skyrmion crystal phases with hexagonal and square structures, and hybrid Bloch-Néel textures.