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  • Fruit flies injected with magnetic nanoparticles and genetically modified to sensitize neural circuits to the rate of change in temperature have enabled subsecond behavioural responses to magnetic stimuli and multi-channel magnetic control.

    • Michael G. Christiansen
    • Simone Schuerle
    News & Views
  • This Review discusses the development of electronanotribology, its intersection with room-temperature ionic liquids and how such collaboration can be used to electrically control friction at the nanoscale.

    • Fernando Bresme
    • Alexei A. Kornyshev
    • Michael Urbakh
    Review Article
  • Here the authors describe a method for remote magnetothermal stimulation of neurons that achieves subsecond behavioural responses in Drosophila fruit flies by combining magnetic nanoparticles with TRPA1-A, a rate-sensitive thermoreceptor. Tuning the properties of magnetic nanoparticles to respond to different magnetic field strengths and frequencies enables multichannel thermal magnetogenetic stimulation.

    • Charles Sebesta
    • Daniel Torres Hinojosa
    • Jacob T. Robinson
  • Hafnium dioxide is of technological interest as it is compatible with silicon; however, previous work indicates that a nanometre grain size is required to generate ferroelectricity. Here ferroelectric Y-doped HfO2 thin films with high crystallinity are grown with large crystal grain sizes, indicating that ferroelectricity is intrinsic.

    • Yu Yun
    • Pratyush Buragohain
    • Xiaoshan Xu
  • A general method by controlling reaction kinetics is proposed to synthesize 67 kinds of two-dimensional crystal with custom-made phases and compositions, in particular, Fe- and Cr-based (layered and non-layered) chalcogenides and phosphorous chalcogenides, which show interesting ferromagnetism and superconductivity properties.

    • Weiguang Yang
    • Jieun Yang
    • Hyeon Suk Shin
    News & Views
  • Distinct electronic and optical properties emerge from quantum confinement in low-dimensional materials. Here, combining optical characterization and ab initio calculations, the authors report an unconventional excitonic state and bound phonon sideband in layered silicon diphosphide.

    • Ling Zhou
    • Junwei Huang
    • Hongtao Yuan
    Article Open Access
  • A design paradigm to create robust robotic metamaterials using versatile gear clusters is demonstrated. It enables intriguing programmability of elastic properties and shape while preserving stability for intelligent machines.

    • Xin Fang
    • Jihong Wen
    • Peter Gumbsch
    Article Open Access
  • The realization of large-scale exciton–polariton platforms operating at room temperature and exhibiting long-lived, strongly interacting excitons has been elusive. Here, the authors demonstrate a room-temperature perovskite-based polaritonic platform with a polariton lattice size of up to 10 × 10.

    • Renjie Tao
    • Kai Peng
    • Wei Bao
  • Electrostatic capacitors can enable ultrafast energy storage and release, but advances in energy density and efficiency need to be made. Here, by doping equimolar Zr, Hf and Sn into Bi4Ti3O12 thin films, a high-entropy stabilized Bi2Ti2O7 pyrochlore phase forms with an energy density of 182 J cm−3 and 78% efficiency.

    • Bingbing Yang
    • Yang Zhang
    • Yuan-Hua Lin
  • Outstanding resistance to destructive radiation damage in structural alloys is realized by ultra-high-density reversible nanoprecipitate inclusions, and the improvement is attributed to the reordering process of low-misfit superlattices in highly supersaturated matrices.

    • Yanwen Zhang
    News & Views
  • Using high-pressure synthesis, perovskite antimonates have been realized with enhanced charge density wave gap and superconducting transition temperatures up to 15 K.

    • Seo Hyoung Chang
    News & Views
  • Twisted monolayer–multilayer graphene superlattices present bi-stable reconstruction states, with reversible switch in-between and long-distance propagation triggered by local mechanical perturbation. This provides additional degrees of freedom for moiré engineering.

    • Augusto Ghiotto
    News & Views