Browse Articles

Filter By:

  • While the reconstruction of classic monolayer networks is a widely addressed problem, accurate reconstruction of multiplex networks is still an open challenge. Here the authors propose a statistical approach that allow to achieve optimal reconstruction of multiplex networks from partial observations and knowledge of the aggregated network.

    • Mincheng Wu
    • Jiming Chen
    • Jianxi Gao
    Article Open Access
  • Memristors are reconfigurable devices that are switchable between low and high resistive states and are expected to play an important role in the integrated circuit technology of next generation computing. Here, the authors theoretically demonstrate that ring-shaped nanostructures composed of a ferromagnetic material can exhibit memristive properties with performance values in the GHz range.

    • Francesco Caravelli
    • Ezio Iacocca
    • Clodoaldo I. L. de Araujo
    Article Open Access
  • Cosmic Rays (CRs) with energy below 1 PeV are believed to originate in the Milky Way, but recent gamma-ray observations by Fermi Large Area Telescope challenge the interpretation of CR diffusion mechanisms across the galaxy. The authors propose that a harder-than-expected slope of the diffuse gamma-ray emission spectrum in the inner Galaxy may be due to unresolved sources, suggested to be TeV-bright pulsar wind nebulae.

    • Vittoria Vecchiotti
    • Giulia Pagliaroli
    • Francesco Lorenzo Villante
    Article Open Access
  • Gain-switching techniques offer a route to ultrafast lasing at the microscale. Here, 13 ps single-mode lasing from inorganic perovskite CsPbBr3 microwires is demonstrated and low transient saturated gain is identified as a significant limitation for further pulse shortening.

    • Jiao Tian
    • Guoen Weng
    • Shaoqiang Chen
    Article Open Access
  • Discrete time crystals are a new state of matter emerging via spontaneous discrete translational symmetry breaking in time. The authors demonstrate that a dissipative discrete time crystal appears in an optical microcavity pumped by a phase-modulated continuous wave laser, offering a new route to study this exotic crystal phase.

    • Hossein Taheri
    • Andrey B. Matsko
    • Krzysztof Sacha
    Article Open Access
  • Biomedical applications of artificial microswimmers rely on efficient navigation strategies within complex and unpredictable fluid environments. Here, the authors use artificial intelligence to model and design microswimmers that are capable of self-learning efficient navigation strategies by adaptively switching between different locomotory gaits.

    • Zonghao Zou
    • Yuexin Liu
    • Alan C. H. Tsang
    Article Open Access
  • Despite the relevance of flexural elastic waves to many diverse physical systems, modelling their propagation is non-trivial. Here, branching and focusing of highly dispersive flexural waves in heterogeneous elastic plates is described numerically and analytically.

    • Kevin Jose
    • Neil Ferguson
    • Atul Bhaskar
    Article Open Access
  • Dzyaloshinskii-Moriya interaction is foundational for spintronics. The authors quantitatively established the roles of orbital hybridization and interfacial spin-orbit coupling in the determination of Dzyaloshinskii-Moriya interaction, offering orbital hybridization as a degree of freedom for the development of fast, dense spintronic memory and computing technologies.

    • Lijun Zhu
    • Lujun Zhu
    • Robert A. Buhrman
    Article Open Access
  • Kitaev materials are prime candidates to study quantum spin liquids but despite many known examples it is still a challenge to realize systems that have a total absence of magnetic ordering. Here, the authors propose Floquet engineering and the use of light-matter interactions to achieve a Kitaev quantum spin liquid phase.

    • Umesh Kumar
    • Saikat Banerjee
    • Shi-Zeng Lin
    Article Open Access
  • The complex interactions in spin spiral systems play an important role for the emergence of multiferroicity and topological magnetic order. Here, the authors investigate the magnetism associated with the two inequivalent Cu positions in the model system Cu2OSeO3, observing site-specific electronic structure and associated magnetic excitations.

    • Yanhong Gu
    • Yilin Wang
    • Valentina Bisogni
    Article Open Access
  • All human activity generates a carbon footprint and scientific research is no exception; however, given the diversity in research activity, developing a standard approach to monitor environmental impact is complex. In this comment, the authors propose a framework for scientists to self-report emissions of research-related emissions in their papers as a means to gradually build an overview of the potential carbon footprint of scientific activity.

    • Ryan Sweke
    • Paul Boes
    • Marcel Goihl
    Comment Open Access
  • Majorana modes realised in topological superconductors are expected to be an important feature for quantum information processing applications. Here, the authors propose an experimental approach to achieve N = 4 supersymmetry in a proximitised semiconducting nanowire and, by spontaneous breaking of the supersymmetry, realise 1D helical Majorana modes as Goldstinos.

    • Pasquale Marra
    • Daisuke Inotani
    • Muneto Nitta
    Article Open Access
  • Coherent Ising machines represent an optical approach to unconventional computing that fail if inhomogeneity of the analog spins’ amplitude becomes too great. Here, an approach to amplitude control is shown to improve their performance even when Zeeman terms are included.

    • Yoshitaka Inui
    • Mastiyage Don Sudeera Hasaranga Gunathilaka
    • Yoshihisa Yamamoto
    Article Open Access
  • Time-crystals describe a system with broken symmetry in the temporal as well as spatial dimension and have, so far, been limited to observations using magneto-optical experiments. As an alternative, the authors theoretically propose how to observe discrete time-crystals by measuring the transport properties of a quantum dot array.

    • Subhajit Sarkar
    • Yonatan Dubi
    Article Open Access
  • Ising machines aim to find the global minimum of Ising energy in the fewest time steps. Here, simulated thermal fluctuations are added to simulated bifurcation to quickly escape from local minima.

    • Taro Kanao
    • Hayato Goto
    Article Open Access
  • Delafossite PdCoO2 boasts outstanding electronic transport properties, making it an interesting plasmonic material. Here, experimental evidence of surface plasmons in micro-ribbon samples is presented.

    • Salvatore Macis
    • Luca Tomarchio
    • Stefano Lupi
    Article Open Access
  • The Fe-based superconductors are an ideal family of materials to investigate the mechanisms of unconventional superconductivity due to the co-existence of both magnetic and superconducting phases. Here, the authors experimentally demonstrate the presence of three magnetic phases in LaFeAs1-xPxO, which can be tuned as a function of phosphorus content, and discuss how the results connect to wider trends in magnetic and superconducting orders of the Fe-based superconductors.

    • Ryan Stadel
    • Dmitry D. Khalyavin
    • Omar Chmaissem
    Article Open Access
  • Moiré patterns and ordered aperiodic geometries have received significant attention since their observation in twisted bilayer graphene and quasicrystalline alloys. Here, the authors theoretically demonstrate that the same patterns can govern localization in quasiperiodic metal-dielectric composites and can be used to engineer the resultant optical and transport properties.

    • David Morison
    • N. Benjamin Murphy
    • Kenneth M. Golden
    Article Open Access