Articles in 2018

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  • Ferromagnetism is observed at ferroelastic domain walls in strontium titanate and its heterostructures with other oxides. Applying strain can reverse the magnetism. This suggests the possibility of device engineering using domain walls.

    • D. V. Christensen
    • Y. Frenkel
    • B. Kalisky
    Article
  • Accurately capturing both microscopic and mesoscopic properties of fluid–gas interfaces is a long-standing challenge. Now, a microscopic theory of correlation functions that can be scaled up to explain mesoscopic surface tension phenomena is put forward.

    • A. O. Parry
    • C. Rascón
    Article
  • A polariton is a hybrid excitation resulting from strong light–matter coupling. The magneto-transport measurements have now revealed the crucial role played by its electronic component.

    • Gian L. Paravicini-Bagliani
    • Felice Appugliese
    • Jérôme Faist
    Article
  • Artificial spin-ice materials are usually described by spins that are either up or down. Here, a new type of spin ice is fabricated where the spins can be in one of three states with different coexisting phases separated by a first-order transition.

    • Joseph Sklenar
    • Yuyang Lao
    • Peter Schiffer
    Article
  • Large-scale numerical examination of a disordered Bose–Hubbard model in two dimensions shows entanglement based signature of many-body localization, providing answers to the challenging questions posed by recent experiments.

    • Thorsten B. Wahl
    • Arijeet Pal
    • Steven H. Simon
    Article
  • Neutron and X-ray scattering experiments show that the partly disordered material CsNiCrF6 supports multiple Coulomb phases with structural and magnetic properties dictated by underlying local gauge symmetry.

    • T. Fennell
    • M. J. Harris
    • S. T. Bramwell
    Article
  • A strong Hall effect is observed in a material with spin textures and strong electron correlations. This hints that correlation effects can amplify real-space topological spin transport.

    • Lorenzo Vistoli
    • Wenbo Wang
    • Manuel Bibes
    Article
  • Biexcitons play an important role in determining the optical properties of transition metal dichalcogenide monolayers, but their precise structure is poorly understood. Using a combination of ultrafast spectroscopy and theory, the origin of their fine structure is revealed.

    • Alexander Steinhoff
    • Matthias Florian
    • Xiaoqin Li
    Article
  • An analogy with wetting has proven apt for describing how groups of cells spread on a substrate. But cells are active: they polarize, generate forces and adhere to their surroundings. Experiments now find agreement with an active update to the theory.

    • Carlos Pérez-González
    • Ricard Alert
    • Xavier Trepat
    Article
  • Multiple different types of topological states are observed in iron-based high-temperature superconductors. This suggests that these may be a good place to try and engineer high-temperature topological superconductivity.

    • Peng Zhang
    • Zhijun Wang
    • Shik Shin
    Article