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Volume 3 Issue 4, April 2023

Studying magnetic superstructures

In this issue, we highlight two studies on moiré magnets. Li et al. developed a rotational and time-reversal equivariant neural network that can accurately model the dependence of the density functional theory Hamiltonian on atomic and magnetic superstructures. In another study, Yang et al. proposed a microscopic moiré spin model that enables the description of moiré magnetic exchange interactions via a sliding-mapping method. These methodological developments open opportunities for predicting emerging phenomena of magnetic superstructures, such as magnetic skyrmions. The cover image depicts — from top to bottom — magnetic field lines, magnetic configurations, a moiré lattice, Hamiltonian matrices, and neural networks.

See Editorial , Li et al. and Yang et al.

Image: Yong Xu, Tsinghua University. Cover design: Alex Wing.

Editorial

  • We highlight two primary research papers, published in this issue of Nature Computational Science, on computational methods for moiré magnets.

    Editorial

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Research Highlights

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News & Views

  • Two computational methods — one physics-based, and the other one deep-learning based — are proposed to enable the systematic investigation of magnetic order in moiré magnets from first principles.

    • David Soriano
    News & Views
  • Discovering biological patterns from omics data is challenging due to the high dimensionality of biological data. A computational framework is presented to more efficiently calculate correlations among omics features and to build networks by estimating important connections.

    • Ali Rahnavard
    News & Views
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Research Briefings

  • A rotational and time-reversal equivariant neural network designed to represent the spin–orbital density functional theory Hamiltonian as a function of the atomic and magnetic structure enables ab initio electronic-structure calculations of magnetic superstructures. These calculations can efficiently and accurately predict subtle magnetic effects in various chemical environments.

    Research Briefing
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Reviews

  • Proton-coupled electron transfer occurs at a variety of length and time scales and often in complex environments. This Perspective summarizes a range of modeling strategies that can be used together to address remaining challenges and provide a better understanding of such reactions.

    • Sharon Hammes-Schiffer
    Perspective
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Research

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