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Genome-wide sequencing of 180 ancient individuals shows a continuous gradient of ancestry in Early-to-Mid-Holocene hunter-gatherers from the Baltic to the Transbaikal region and distinct contemporaneous groups in Northeast Siberia, and provides insights into the origins of modern Uralic and Yeniseian speakers.

The performance of single-crystal perovskite solar cells has been limited by interfacial loss at the perovskite/charge transport layer. Here, authors fabricate an asymmetric substrate stack through space-confined inverse temperature crystallization, achieving maximum device efficiency of 24.32%.

Though exceptions exist, the 18-electron rule, which indicates that diamagnetic 18-electron complexes do not coordinate to a ligand to form a 20-electron complex, is widely accepted. Here, based on the tunable ligand design, the authors report the formation of 20-electron ferrocene derivatives through reversible nitrogen coordination to 18-electron analogues.

Most superconductors that exhibit exotic pairing symmetries are derived from host materials that are Mott insulators. Xiangang Wan and Sergey Savrasov show that it may be possible to realize an exotic p-wave superconductor in doped Bi₂Se₃, which is a topological band insulator.

A colour sensor array based on multilayer monolithically stacked lead halide perovskite thin-film photodetectors achieves higher quantum efficiency and superior colour accuracy compared to conventional filter-based image sensors.

From 2003 to 2020, the efficiency of white light-emitting diodes rose from 6% to 39%, while costs fell by 96%. Weinold et al. explore the drivers of such rapid progress to formulate lessons for future clean energy innovation.

A platform based on quantum-emitter-embedded metasurfaces with a microcavity that can be tuned by a micro-electromechanical system is demonstrated, enabling dynamic photon emission with narrow bandwidth, ångström-level wavelength tunability and polarization switching.

The Fermi surface is related to the energy distribution of electrons in a solid, and governs physical properties of metals and semiconductors. A new type of angle-resolved photoemission spectroscopy, probing the Fermi surface and combining short recording time with high resolution, is now presented.

Complex structural variations and rearrangements in cancer are identified using long-read sequencing.

The synthesis and isolation of d-block metallocenes with more than 18-electron is challenging since metal–carbon bonds become weaker with increasing deviation from the 18-electron configuration. Here the authors report a formal 21-electron cobaltocene derivative by coordination of a two-electron donor to a 19-electron cobaltocene derivative while maintaining the cobalt-carbon bonds.

Reactive polyiodide melt-assisted conversion of metallic lead nanolayers into hybrid lead halide films opens a new branch of scalable technologies for perovskite photovoltaics.

A recent report on electrostatic field effect in superconducting devices provides a high potential for advanced quantum technology, but it remains controversial. Here, the authors report that the suppression of critical current, which was attributed to the field effect, can instead be explained by quasiparticle excitations in the constriction of superconducting devices.

Heusler alloy thin films with a distorted tetragonal structure have potential spintronics applications given their bulk perpendicular magnetic anisotropy. Here, the authors demonstrate large perpendicular magnetic anisotropy in Mn₃Ge thin films accompanied by negative tunnelling magnetoresistance.

Aromatic chemicals, having indispensable roles in human society, are currently produced from fossil resources. Here, the authors introduce a strategy to synthesize benzenoid aromatics from bio-based feedstock, showing the possibility of phasing out fossil-based feedstocks in aromatics production.

Candidate materials containing magnetic Weyl fermions remain rare. Here, the authors report evidence of a magnetic Weyl state and observe the surface Fermi arcs in YbMnBi₂.

New silicon probes known as Neuropixels are shown to record from hundreds of neurons simultaneously in awake and freely moving rodents.

We provide evidence for superconducting topological Fermi arcs in PbBi₂—a Weyl semimetal previously studied mostly for its bulk properties—from which Marjorama fermions could be derived for research in quantum computers.

Memristors can switch between high and low electrical-resistance states, but the switching behaviour can be unpredictable. Here, the authors harness this unpredictability to develop a memristor-based true random number generator that uses the stochastic delay time of threshold switching

This study highlights Bronze Age northern Eurasia as a region of interaction between various groups sharing a Siberian ancestry component and the spread of languages and cultures.

Calcium ions play a vital role in enabling synaptic plasticity in biological systems. The dynamic behaviour of these ions has now been emulated in a metal atom diffusion-based memristor.

Kofuji et al. demonstrate that upregulation of IMPDH2 promotes nucleostemin stabilization and nucleoli malformation, and its inactivation induces growth arrest in glioblastoma.

A real-time investigation shows that Ga nanoparticles in the solid γ-phase coexist with liquid Ga at a broad range of temperatures, as a result of nanoscale confinement, Laplace pressure and epitaxial matching with the substrate.

The use of phase-change materials makes metasurfaces and nanoantennas electrically tunable and switchable, bringing their functionality to the next level.

Controlling the motion and pinning of vortices is essential for developing superconducting electronics. Here, the authors reveal the vortex pinning nano-network in thin superconducting niobium films by developing a scanning quantum vortex microscopy approach.

Unconventional superconductivity can be found in many artificial compounds such as cuprates, iron-based and heavy-fermion superconductors, and recently discovered exotic materials; however, it rarely occurs naturally. Here, nodal superconductivity is observed in synthetically clean miassite minerals, which can also be found in nature.

The authors present a computational framework for false-discovery-rate-controlled metabolite annotation from high-resolution imaging mass spectrometry data.

Plasmonic colours can be used to colour large surfaces, can be mass-produced and dynamically reconfigured, and can provide sub-diffraction resolution. In this Review, basic properties of plasmonic colours, different platforms supporting them and recent developments in the field are discussed.

Understanding the coupling between spin-polarised topological surface states and the bulk provides insight into ultrafast spin dynamics. Here, this coupling is shown to be accompanied by a large mass enhancement in the Sb(111) surface electronic structure, leading to unusual dynamics.

High-entropy alloys establish a new conceptual framework for alloy design and can exhibit outstanding properties attractive for technological applications. The authors investigate the pressure induced magnetovolume effect in the high-entropy alloy CoCrFeAl and find its origin in two progressive, experimentally tunable magnetic transitions.