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  • An apparent quirk of mathematics draws on a symmetry and resolves the issue of how to determine the equilibrium shape of crystals of two-dimensional materials with asymmetric terminations.

    • Paul Erhart
    • J. Magnus Rahm
    News & Views
  • About 700 scientists from 45 countries gathered in Dresden for the first time since the start of the COVID-19 pandemic to share their latest findings on metal–organic frameworks and open frameworks compounds.

    • Veronique Van Speybroeck
    • Guillaume Maurin
    Meeting Report
  • Experiments with entangled photons, which enabled the pioneering of quantum information science, have been awarded this year’s Nobel Prize in Physics.

    Editorial
  • As metal–organic frameworks move towards practical application, data for an expanded range of physical properties are needed. Molecular-level modelling and data science can play an important role.

    • Randall Q. Snurr
    News & Views
  • Angle-resolved photo-emission spectroscopy measurements demonstrate that different types of three-dimensional charge-order pattern are realized in distinct members of a newly discovered family of superconductors with underlying kagome lattices.

    • Rafael M. Fernandes
    News & Views
  • A transition from three- to two-dimensional magnon transport in ultrathin yttrium iron garnet films reveals giant spin conductivity at room temperature.

    • M. Benjamin Jungfleisch
    News & Views
  • Coupling charge transfer with molecular protonation processes yields electronic systems that display negative differential conductance, an effect that can be harnessed to implement a wide range of device configurations from logic gates to synaptic behaviour.

    • Joshua Hihath
    News & Views
  • To realize electronic operations beyond the von Neumann bottleneck, a new type of switch that can mimic self-learning is needed. Here, the authors demonstrate all-in-one-place logic and memory operations based on dynamic molecular switch that can emulate brain-like synaptic and Pavlovian response, bringing the field a step closer to molecular-scale hardware.

    • Yulong Wang
    • Qian Zhang
    • Christian A. Nijhuis
    Article
  • Spectral shifts in transient photoluminescence measurements performed with a confocal microscope allow tracking of charge carrier mobilities in polycrystalline halide perovskites.

    • Thomas Kirchartz
    News & Views
  • The authors report a crossover from easy-plane to easy-axis magnetic anisotropy in monolayer RuCl3, which they attribute to an in-plane distortion of the Cl atoms observed in electron diffraction that modify the non-Kitaev exchange terms. The results are useful for overcoming the challenge of realizing a quantum spin liquid.

    • Bowen Yang
    • Yin Min Goh
    • Adam W. Tsen
    Article
  • Low-power and compact active pixel sensor (APS) matrices are desired for resource-limited edge devices. Here, the authors report a small-footprint APS matrix based on monolayer MoS2 phototransistors arrays exhibiting spectral uniformity, reconfigurable photoresponsivity and de-noising capabilities at low energy consumption.

    • Akhil Dodda
    • Darsith Jayachandran
    • Saptarshi Das
    Article
  • Encoding information redundantly in a three-spin-qubit silicon device together with a novel quantum gate can protect against common errors.

    • Andre Saraiva
    • Stephen D. Bartlett
    News & Views
  • Pine cones deform ultraslowly as humidity changes, which is mostly driven by the spring-shaped and square microtubular heterostructure of the vascular bundles. This mechanism inspires the development of soft actuators with imperceptible but efficient motion under environmental stimuli.

    • Cecilia Laschi
    • Barbara Mazzolai
    News & Views