Search

The kagome lattice is increasingly known as a host for correlated topological electronic states. Here, Ye et al. report quantum de Haas-van Alphen oscillations of a ferromagnetic kagome material Fe3Sn2, where bulk electronic Dirac fermions are found to be modulated by rotation of the magnetic moment.

Aperiodic composite crystals were discovered that emulate 2D moiré materials, demonstrating a potentially scalable approach for producing moiré materials for next-generation electronics and a generalizable approach for realizing theoretical predictions of higher-dimensional quantum phenomena.

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.

Most patients with B-cell leukemia respond to chimeric antigen receptor T cell (CAR T) therapy, yet many relapse due to loss of CAR T function. Here, the authors show that the metabolism of CAR T from short- and long-term responders is different, which may explain why CAR T lose functionality.

Experimental evidence of coherent charge transport in the normal state of the kagome metal CsV₃Sb₅ is presented, revealing the nature of correlated order in kagome metals and new directions for exploring quantum coherence in correlated electron systems.

Plastids, photosynthetic organelles in plants and algae, originated from cyanobacterial endosymbiosis. Here, Shrestha et al. use metagenomics to expand plastid diversity and provide evidence for two independent origins of secondary red-algal plastids.

Using Mendelian randomization, no causal links were found between estradiol exposure and brain age gap, Alzheimer’s disease and depression in females. The pattern was consistent for estradiol levels in pre- and postmenopausal samples and males.

The authors study microstructured UTe₂ by high-field transport, focusing on the field-reinforced superconducting phase. They reveal a highly-directional vortex pinning force typical of quasi-2D superconductors, indicating a vortex lock-in state and consistent with a change of order parameter from the low-field superconducting phase.

The authors demonstrate the existence of chiral phonons in a non-chiral ferroelectric material, opening the possibility for phonon chirality control through ferroic switching of the electric polarization.

An in-depth analysis of tissue biopsies from patients with multiple myeloma and CAR T cell therapy-associated immune-related adverse events (CirAEs) after treatment with commercial BCMA-targeted CAR T cell therapy shows that CD4⁺ CAR T cells mediate off-tumor toxicities and that high CD4:CD8 ratio at apheresis, robust early CAR T cell expansion, ICANS and ciltacabtagene autoleuce treatment are independently associated with the development of CirAEs.

Strong electron correlations often lead to unusual electronic ground states. Here, the authors present evidence for a density wave in the compound CeRhIn₅, the first for a so-called heavy-fermion metal where electrons have a very high effective mass.

Single-crystal alloy thin films (SATFs) are appealing for applications in crystal epitaxy, surface catalysis, and energy conversion. Here, the authors report a method to synthesize wafer-scale binary and ternary SATFs with sub-nanometer roughness, which can be used as substrates for the growth of high-quality graphene single crystals.

Heavily doped semiconductors, which can exhibit superconductivity, and low-dimensional superconducting thin films are currently limited by interface scattering, electronic or atomic-scale disorder. Here, the fabrication of a high-quality superconducting layer within a thin-film heterostructure based on SrTiO₃ is reported. By selectively doping a narrow region of SrTiO₃ a two-dimensional superconductor is formed that should provide a model system in which to explore the quantum transport and interplay of both superconducting and normal electrons.

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

The properties of bilayer graphene can be tuned by twisting the layers relative to one another. Schmidt et al.now demonstrate the twist angle dependence of magnetotransport in this material system and uncover the formation of satellite Landau fans in the small-angle regime because of superlattice formation

The topological character of electrons in semimetals subtly influences their bulk properties, leading typically to weak experimental signatures. Here, Moll et al. report a distinctive anomaly in the magnetic torque upon entering quantum limit state in the Weyl semimetal NbAs, which only appears due to the presence of Weyl fermions.

Catalytic removal of chlorinated pollutants is hampered by sluggish degradation, incomplete dechlorination, and poor catalyst recovery. Here, a catalytic membrane with strong nanoconfinement effects is developed for achieving ultrafast, complete, and stable dechlorination of those pollutants.

The electronic structure of the helimagnet CrAs is unusual due to its nonsymmorphic crystal symmetry. Here, the authors observe quasilinear magnetoresistance close to a pressure-driven superconducting transition, which may arise from the interaction of the band structure and magnetic fluctuations.

Sea-level variations form unstable sedimentary sequences by depositing interbedded fine- and coarse-grained sediments at the Baiyun Slide Complex in the South China Sea, according to seismic data analysis from the South China Sea.

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.

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.

Quantum oscillations serve as an important probe of electronic structure of quantum materials. Yang et al. study quantum oscillations in the electronic specific heat of natural graphite, unveiling a double-peak structure absent in commonly used theory, and show its utility in determining the Landé g-factors.

Most of the notable properties of graphene are a result of the cone-like nature of the points in its electronic structure where its conduction and valance bands meet. Similar structures arise in 2D HgTe quantum wells, but without the spin- and valley-degeneracy of graphene; their properties are also likely to be easier to control.

There is a long-standing experimental effort to observe field-induced correlated states in three-dimensional materials. Here, the authors observe an unconventional Hall response in the quantum limit of the bulk semimetal HfTe₅ with a plateau-like feature in the Hall conductivity.

This Resource paper presents a global SARS-CoV-2 phylogenetic tree of 4,471,579 high-quality genomes consistently constructed by Viridian, an efficient amplicon-aware assembler.

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.

Experiments on YBa₂Cu₃O_6.51 reveal more than one carrier pocket, and evidence is found for the existence of a much larger pocket of heavier mass carriers having a thermodynamically dominant role in this hole-doped superconductor.

A giant spin Seebeck effect—three orders of magnitude greater than previously detected—has been observed in a non-magnetic material, InSb; the proposed mechanism relies only on phonon drag and spin–orbit interactions in a spin-polarized system, not on magnetic exchange.

Superconductivity in the iron pnictides is believed to be related to quantum critical fluctuations. Putzke et al. observe unexpected anomalies in the critical fields of BaFe₂(As_1−xP_x)₂that emerge close to its magnetic critical point, which they argue is a generic feature of quantum critical superconductivity.

The physical properties of organic metals have generally been described in terms of a highly correlated Luttinger liquid. Using angle-resolved photoelectron spectroscopy, Kisset al. measure the Fermi surface of (BEDT-TTF)₃Br(pBIB), and find that, in contrast to other systems, it can be described as a Fermi liquid.

Defects in solids may introduce additional charges that influence the overall charge transport behaviour. Here, Zhao et al. use swift electron beams to compensate charge defects, which effectively tune Bi₂Te₃ and Bi₂Se₃ from p-type to n-type while preserving their topological properties.

Graphene was one of the first materials proposed to host the quantum spin Hall effect. However, its weak intrinsic spin-orbit interaction means that observing such an effect requires modifying the graphene band structure. Here, Ghiasi et al. combine graphene with CrPS₄ and detect quantum spin Hall states at zero magnetic field.

Triply degenerate point (TP) fermions have been reported in MoP but the TPs are far below the Fermi level. Here, Guo et al. predict and verify the possible existence of TP fermions in trigonal layered PtBi₂, where the TP points are close to the Fermi level.

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.

It was predicted that in the regime of strong electron-phonon interactions, electrons and phonons can form a coupled non-equilibrium state, characterized by the conservation of the total momentum and by hydrodynamic transport. Here, the authors report experimental evidence for such a coupled electron-phonon liquid in NbGe₂.

Landau states are associated with the quantised orbits of charged particles in magnetic fields. By manipulating electron vortex beams in a magnetic field, this study reconstructs the internal quantum dynamics of free-electron Landau states, which differs strongly from the classical cyclotron rotation.

In Weyl semimetals, unusual electronic transport phenomena are predicted to occur, such as an axial anomaly which violates the conservation of chiral fermions. Here, the authors evidence such behaviour via the occurrence of negative magnetoresistance in layered high-purity non-magnetic metals.