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Femtosecond time-resolved X-ray diffraction reveals that in the ultrafast demagnitization of ferromagnetic iron, about 80% of the angular momentum lost from the spins is transferred to the lattice on a sub-picosecond timescale.

Vaulet et al. developed and validated four continuous indices from histological lesion scores to assess kidney transplant rejection, offering an alternative to the Banff categories that reflect the continuous nature of rejection.

Identifying jets originating from heavy quarks plays a fundamental role in hadronic collider experiments. In this work, the ATLAS Collaboration describes and tests a transformer-based neural network architecture for jet flavour tagging based on low-level input and physics-inspired constraints.

The two-dimensional atomic layers of black phosphorus may be exfoliated to create devices with desirable electronic transport properties. Here, the authors observe two-dimensional quantum transport in black phosphorus quantum wells, protected from oxidation by encapsulation in a polymer layer.

Superconductivity is induced in an accidental Dirac semimetal via the proximity effect.

Superconductor–semiconductor hybrid systems can bring together physical properties that are promising for fast and coherent quantum technology. Here, Hendrickx et al. realize such a system in planar germanium heterostructures demonstrating excellent quantum dots and tunable Josephson supercurrents.

A 3D quantum Hall effect has been reported in Dirac semimetal ZrTe₅ due to a magnetic-field-driven Fermi surface instability. Here, the authors show evidence of quasi-quantized Hall response without Fermi surface instability, but they argue that it is due to the interplay of the intrinsic properties of ZrTe₅ electronic structure and Dirac semi-metallic character.

Genomic analyses applied to 14 childhood- and adult-onset psychiatric disorders identifies five underlying genomic factors that explain the majority of the genetic variance of the individual disorders.

Screening by a graphite gate placed at 1 nm proximity to graphene produces transformative improvement in its electronic quality, reducing charge inhomogeneity by two orders of magnitude.

The observation of a superconductive current flowing through a topological insulator is considered the first step towards the observation of the elusive Majorana fermions. This is now achieved in a superconductor/topological insulator/superconductor junction in which direct evidence of Josephson supercurrents is reported.

At sufficiently strong magnetic fields and low temperatures, electrons assume a quasi-one-dimensional quantum state that is challenging to observe. Here, Bhattacharya et al. report on electron transport in lightly-doped single crystals of SrTiO₃deep in this extreme quantum limit.

New printing techniques demand methods capable of spreading uniform liquid films efficiently across surfaces. McHale et al.show that applying external electric fields to non-charged liquids can achieve this goal without complicated surface modification or adding surfactants in the liquids.

Electrons trapped to a two-dimensional plane can exhibit many exotic properties. Here, the authors use a technique that measures entropy per electron to explore the evolution of such a system from the Fermi liquid regime to a previously unexplored regime of a strongly correlated charged plasma.

Moiré field-effect transistors based on graphene/hexagonal boron nitride heterostructures are promising for their high room-temperature carrier mobilities and magnetotransport properties. Here, high-temperature molecular beam epitaxy growth of graphene/hBN gives rise to a moiré-fringed hexagonal superlattice with Hofstadter butterfly electronic band structure and quantum magneto-oscillations above room temperature.

A study of several longitudinal birth cohorts and cross-sectional cohorts finds only moderate overlap in genetic variants between autism that is diagnosed earlier and that diagnosed later, so they may represent aetiologically different conditions.

It is widely believed that high-field superconductivity in heavy fermion metals is sustained only when the effective mass of its conduction electrons diverge. Measurements of magnetically driven changes in the electronic topology of URhGe suggest it is not divergence of the effective mass to infinity but a vanishing of the Fermi velocity to zero that supports this behaviour.

The insertion of La_1−xSr_xMnO₃ in the interface between LaAlO₃ and SrTiO₃ enhances the electron mobility due to charge-transfer-induced modulation doping. Shubnikov–de Haas oscillations and fingerprints of the quantum Hall effect are observed.

We demonstrate the emergence of magnetism induced by a terahertz electric field in SrTiO₃.

Ballistic motion on nanometer scale of topological surface states has rarely been studied. Here, Maier et al. report pronounced geometric resistance resonances of high-mobility Dirac electrons in strained HgTe, suggesting a ballistic effect in three-dimensional topological insulators.

In the emerging field of valleytronics, the valley degree of freedom of electrons is exploited in addition to charge and spin for novel functionalities. Here, Renard et al.show how valley polarization can facilitate spin-polarization in a silicon-on-insulator quantum well.

Linear magnetoresistance is a phenomenon observed in many material systems and could be used in magnetic field sensors. This paper uncovers its microscopic origin showing how it arises from multiple scattering of electrons by low-mobility islands within an inhomogeneous high-mobility semiconductor.

Highly mobile electrons at the interface of two perovskite oxides are of considerable interest for electronic applications. In this work, the discovery of such an electron gas at the interface of a spinel and a perovskite oxide represents a new approach to look for oxide systems with enhanced properties.

The conductivity of marginally-twisted bilayer graphene is predicted to persist in presence of a bandgap-opening interlayer bias, owing to a network of 1D conductive states at domain boundaries. Here, the authors report Aharonov–Bohm oscillations up to 100 K, whereas at liquid helium temperatures another kind of oscillation appears, due to progressive population of the narrow minibands formed by the 2D network of 1D states inside the gap.

In compounds containing 4f and 5f elements, hidden-order phases exist which are undetectable by many methods, the origins of which are debated. Here, the authors use photoemission and neutron scattering methods to show how such a multipolar-ordered phase emerges due to Fermi surface instability in CeB₆.

A significant enhancement in the effective mass of Dirac-like quasiparticles residing near a nodal loop in the electronic band structure provides evidence for strong correlation effects in a topological semimetal.

Electronic excitations with energies near the superconducting energy gap are strongly affected by superconducting transitions. The authors show, with a comprehensive optical investigation, that excitations with energies up to two orders of magnitude greater are also affected by the transition.

A. G. Eaton et al. directly probe the Fermi surface of the candidate triplet superconductor UTe2 by measuring magnetic quantum oscillations in ultra-pure crystals. By comparison with model calculations, the data are found to be consistent with a Fermi surface that consists of two cylindrical sections of electron and hole-type respectively.

The discovery of superconductivity in the heavy fermion compound UTe2, a potential topological and triplet-paired superconductor, has generated significant interest in condensed matter physics with particular interest in the nature of the Fermi surface. Here, the authors employed a contactless conductivity technique to investigate the quantum interference oscillations of compressed UTe2 up to 19.5 kbar, aiming to examine key features of its Fermi surface.

The cell wall of the oral bacterium Streptococcus mutans carries SCC, a rhamnose-containing polysaccharide with glucose side-chain decorations. Here, the authors report the SCC structure and the synthesis mechanism, revealing how four glucosyltransferases work together to synthesize the side-chains.

Advances in the fabrication of low-disorder metallic materials have made it possible to reach the hydrodynamic regime of electronic transport. Here the authors investigate a hydrodynamic electron fluid in tungsten diphosphide and find that both electrical and thermal transport are limited by the quantum indeterminacy.

An ideal topological insulator possesses an insulating bulk and a unique conducting surface however such behaviour is typically inhibited by bulk conduction due to defects. Here, the authors show that Sn-doped Bi_1.1Sb_0.9Te₂S grown by the vertical Bridgman technique might overcome this hurdle.

Pathology-oriented multiplexing (PathoPlex) represents a framework for widespread access to multiplexed imaging and computational image analysis of clinical specimens at a relatively high throughput and subcellular resolution.

Using a multi-OMICS approach, Haas et al identify 54 human genes and 16 host-targeting chemical compounds that regulate influenza A virus infection in lung epithelial cells, including AHNAK and COBP1 which are also essential for SARS-CoV-2 infection.

An analysis of 2,954 genomes from 38 cancer subtypes identified 19,166 retrotransposition events in 35% of samples. Aberrant LINE-1 retrotranspositions can lead to the deletion of tumor-suppressor genes as well as the amplification of oncogenes.

By coupling to electrons in the quantum Hall regime, the mechanical response of graphene resonators is modulated by changes in the chemical potential.

Entanglement was observed in top–antitop quark events by the ATLAS experiment produced at the Large Hadron Collider at CERN using a proton–proton collision dataset with a centre-of-mass energy of √s  = 13 TeV and an integrated luminosity of 140 fb⁻¹.

We show that domain walls in minimally twisted bilayer graphene support exceptionally robust proximity superconductivity in the quantum Hall regime.

Understanding the immunological underpinnings of long-term survival in cancer is of high interest. Here, authors dissect the immune parameters of multiple myeloma long-term survivors following a single line of therapy longitudinally, and find sustained changes, including inflammation and impaired immune function.

Viral pathogen load in cancer genomes is estimated through analysis of sequencing data from 2,656 tumors across 35 cancer types using multiple pathogen-detection pipelines, identifying viruses in 382 genomic and 68 transcriptome datasets.