Magnetic properties and materials articles within Nature Communications

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  • Article
    | Open Access

    Phase diagrams of materials are typically based on a static order parameter, but it faces challenges when distinguishing subtle phase changes, such as re-ordering. Here the authors introduce a dynamic re-order parameter, in particular magnons, and illustrate it in a material with complex magnetic phases.

    • Byung Cheol Park
    • , Howon Lee
    •  & Taewoo Ha

  • Article
    | Open Access

    The techniques we typically employ to study spin-waves in magnetic materials, such as Brillouin Light Scattering, are two-dimensional. Spin waves, however, are manifestly three-dimensional. Here, Girardi et al. succeed in such three-dimensional imaging of spin waves in a synthetic antiferromagnet using Time-Resolved Soft X-ray Laminography.

    • Davide Girardi
    • , Simone Finizio
    •  & Edoardo Albisetti

  • Article
    | Open Access

    Here the authors demonstrate a broadband nonlinear optical diode effect and its electric control in the magnetic Weyl semimetal CeAlSi. Their findings advance ongoing research to identify novel optical phenomena in topological materials.

    • Christian Tzschaschel
    • , Jian-Xiang Qiu
    •  & Su-Yang Xu

  • Article
    | Open Access

    Several recent experimental studies have found disconnected Fermi surface arcs emerging below the Neel temperature in several rare-earth mono-pnictides. While these electronic states have been attributed to a non-collinear antiferromagnetic order, experimental evidence of this has been lacking. Here Huang et al demonstrate the emergence of non-collinear antiferromagnetic order using spin-polarized scanning tunnelling microscopy.

    • Zengle Huang
    • , Hemian Yi
    •  & Weida Wu

  • Article
    | Open Access

    Exchange bias occurs in a variety of magnetic materials and heterostructures. The quintessential example occurs in antiferromagnetic/ferromagnetic heterostructures and has been employed extensively in magnetic memory devices. Here, via a specific field training protocol, the authors demonstrate an exchange bias of up to 400mT in odd layered MnBi2Te4.

    • Su Kong Chong
    • , Yang Cheng
    •  & Kang L. Wang

  • Article
    | Open Access

    Recently superconductivity with Tc of about 80 K was discovered in a bilayer nickelate La3Ni2O7 under high pressure. Here the authors report a density functional theory and random phase approximation study of structural and electronic properties as a function of pressure and discuss the pairing mechanism.

    • Yang Zhang
    • , Ling-Fang Lin
    •  & Elbio Dagotto

  • Article
    | Open Access

    Magnetic type-II Weyl semimetals host a variety of intriguing physical phenomena due to the combination of magnetic ordering and the electronic properties of the Weyl nodes. Herein, the authors explore the ultrafast spin dynamics of the magnetic Weyl semimetal, Co3Sn2S2, observing a transient enhanced magnetization as a result of laser excitation.

    • Xianyang Lu
    • , Zhiyong Lin
    •  & Yongbing Xu

  • Article
    | Open Access

    Recently, signatures of quantum spin liquid have been reported in monolayer transition metal dichalcogenides. Here the authors report evidence of such state in 1T-NbSe2 via the measurements of the Kondo effect in a 1T-1H heterostructure, further supported by measurements for magnetic molecules on 1T-NbSe2.

    • Quanzhen Zhang
    • , Wen-Yu He
    •  & Yeliang Wang

  • Article
    | Open Access

    Gapped quantum antiferromagnets can undergo field or pressure induced phase transitions to the magnetically ordered state, which have distinct critical exponents. While there are many examples of field induced transitions, thus far the pressure induced case has proven difficult to realize. Herein, the authors demonstrate such a pressure driven phase transition in the quantum antiferromagnet, DTN.

    • Kirill Yu. Povarov
    • , David E. Graf
    •  & Sergei A. Zvyagin

  • Article
    | Open Access

    The development of higher frequency transformers and inductors requires soft magnetic materials with stable permeability up to GHz frequencies, however, such soft magnetic materials are current lacking. Here Bai et al demonstrate a soft magnetic composite featuring isolated magnetic vortices, which endow the material with a stable permeability over a GHz range of frequency.

    • Guohua Bai
    • , Jiayi Sun
    •  & Xuefeng Zhang

  • Article
    | Open Access

    Recently there has been a surge of interest in using magnons, the quasi-particles of spin-waves in magnetic systems, for information processing, driven by the potentially very low energy consumption. Here, by adjusting the magnetic compensation in a ferrimagnet, Li et al demonstrate magnon–magnon coupling, and controllable spin wave mediated spin current transmission.

    • Yan Li
    • , Zhitao Zhang
    •  & Xixiang Zhang

  • Article
    | Open Access

    The spin texture of a magnetic system can host a variety of topological spin textures, the most famous of these being skyrmions. Here, Volkov et al demonstrate higher order vorticity in magnetic wireframe nanostructures and introduce a general protocol for the creation of arbitrary numbers of vortices and antivortices in such wireframe structures.

    • Oleksii M. Volkov
    • , Oleksandr V. Pylypovskyi
    •  & Denys Makarov

  • Article
    | Open Access

    Several recent works have highlighted the importance of the orbital currents in transferring angular momentum within materials. In combination with spin-orbit coupling, such orbital currents can be used to alter the magnetization of a material. Herein, the authors demonstrate the inverse effect, showing orbital current driven terahertz emission in Nickel based heterostructures.

    • Yong Xu
    • , Fan Zhang
    •  & Weisheng Zhao

  • Article
    | Open Access

    FeGe is a Kagome metal that exhibits a very rich array of magnetic and electronic phases. Here, using neutron scattering, Chen et al add to this zoo, by showing the emergence of a spin density wave order.

    • Lebing Chen
    • , Xiaokun Teng
    •  & Pengcheng Dai

  • Article
    | Open Access

    Magnetic random access memory current uses spin transfer torque for switching, which limits the speed of switching operation, and the number of times the device can be switched before failure. Here, Yang et al. demonstrate field free switching using spin-orbit torque offering a pathway to overcome these limitations.

    • Qu Yang
    • , Donghyeon Han
    •  & Hyunsoo Yang

  • Article
    | Open Access

    An altermagnet has highly anisotropic spin splitting but zero net magnetization. Here, S.-B. Zhang et al. theoretically study the behavior of s-wave superconductor/altermagnet hybrid structures, finding that Cooper pairs in the proximitized altermagnet have an anisotropic non-zero momentum.

    • Song-Bo Zhang
    • , Lun-Hui Hu
    •  & Titus Neupert

  • Article
    | Open Access

    The combination of strong light-matter interactions and controllable magnetic properties make magnetic semiconductors attractive for both fundamental physics and the development of devices. Here, Hendriks et al show how the optically driven magnetization dynamics in Cr2Ge2Te6 can be controlled via electrostatic gating.

    • Freddie Hendriks
    • , Rafael R. Rojas-Lopez
    •  & Marcos H. D. Guimarães

  • Article
    | Open Access

    Here the authors propose an isotropic three-dimensional metamaterial with nonreciprocal magnetoelectric resonant responses at visible and mid-infrared frequencies. The proposed metamaterials do not require external magnetization.

    • Shadi Safaei Jazi
    • , Ihar Faniayeu
    •  & Viktar Asadchy

  • Article
    | Open Access

    Charge-to-spin conversion allows for the generation and control of spin polarization via a charge current. Typically, this is done with non-magnetic materials with large spin-orbit interactions such as Platinum. Herein, Dai et al demonstrate an intriguing charge-to-spin mechanism, a magnetic spin Hall effect, in a van der Waals heterostructure.

    • Yudi Dai
    • , Junlin Xiong
    •  & Feng Miao

  • Article
    | Open Access

    Artificial spin ices are nanomagnetic metamaterials, whose collective magnetization self-organizes into extended domains. However, controlling when, where and how domains change has proven difficult, yet is crucial for technological applications. Here, Jensen and Strømberg et al. introduce astroid clocking, which enables controlled, stepwise growth and reversal of magnetic domains, using only global fields.

    • Johannes H. Jensen
    • , Anders Strømberg
    •  & Erik Folven

  • Article
    | Open Access

    2D bilayers have recently attracted significant attention due to fundamental properties like interlayer excitons and interfacial ferroelectricity. Here, the authors report a density functional theory approach to identify 2586 stable homobilayer systems and calculate their stacking-dependent electronic, magnetic and vibrational properties.

    • Sahar Pakdel
    • , Asbjørn Rasmussen
    •  & Kristian S. Thygesen

  • Article
    | Open Access

    Recent work has demonstrated the potential of polycrystalIine antiferromagnetic materials for spintronics. Here the authors report evidence of magnetic phase transitions in a polycrystalline non-collinear antiferromagnet, which are explained by a phenomenological model with topological orbital momenta.

    • Sihao Deng
    • , Olena Gomonay
    •  & Christoph Sürgers

  • Article
    | Open Access

    Electrical control of topological magnets is of great interest for future spintronic applications. Here, the authors demonstrate the effective manipulation of antiferromagnetic order in a Weyl semimetal using orbital torques, with implications for neuromorphic device applications.

    • Zhenyi Zheng
    • , Tao Zeng
    •  & Jingsheng Chen

  • Article
    | Open Access

    Photoinduced phase transitions occur in a variety of materials and allow for the optical control of the materials properties. Here, Herve et al present a streaming powder X-ray diffraction method allowing them to study the ultrafast photoinduced phase transition of Rb0.94Mn0.94Co0.06[Fe(CN)6]0.9 within thermal hysteresis.

    • Marius Hervé
    • , Gaël Privault
    •  & Eric Collet

  • Article
    | Open Access

    Strongly correlated and topological phases of matter can be often described using the tools of quantum field theory. Here the authors report the thermal Hall effect in the antiferromagnetic skyrmion lattice of MnSc2S4, revealing transport features that can be attributed to an emergent SU(3) gauge field.

    • Hikaru Takeda
    • , Masataka Kawano
    •  & Chisa Hotta

  • Article
    | Open Access

    Quasiparticles’ have formed an extremely effective explanation for the charge, spin and lattice excitations of materials, allowing for the otherwise complex response to be explained in terms of a single (quasi)particle with an effective Hamiltonian. Here, Hasegawa et al demonstrate the tuning of magnon quasiparticle decay in the quantum antiferromagnet, RbFeCl3.’

    • Shunsuke Hasegawa
    • , Hodaka Kikuchi
    •  & Takatsugu Masuda

  • Article
    | Open Access

    The Yu-Shiba-Rusinov state, arising from exchange coupling between a magnetic impurity and a superconductor, undergoes a quantum phase transition at a critical coupling. In a scanning tunnelling microscopy experiment, Karan et al. reveal distinct tunnelling spectra on each side of the transition in a magnetic field, which allows them to distinguish the free spin regime from the screened spin regime.

    • Sujoy Karan
    • , Haonan Huang
    •  & Christian R. Ast

  • Article
    | Open Access

    SrCu2(BO3)2 realizes the Shastry-Sutherland model (SSM), a 2D frustrated dimer model. Here, via high-magnetic-field inelastic neutron scattering measurements and matrix-product-state calculations, Fogh et al. find evidence for Bose-Einstein condensation of S = 2 two-triplon bound states, which is a spin-nematic phase.

    • Ellen Fogh
    • , Mithilesh Nayak
    •  & Henrik M. Rønnow

  • Article
    | Open Access

    The thermal Hall effect has been reported in several materials, but it is not expected in triangular lattice systems due to chirality cancellation. Kim et al. report the thermal Hall effect attributed to topological spin fluctuations in the supposedly paramagnetic phase of YMnO3 with a trimerized triangular lattice.

    • Ha-Leem Kim
    • , Takuma Saito
    •  & Je-Geun Park

  • Article
    | Open Access

    The superconductor UTe2 exhibits a reentrant superconducting phase at magnetic fields above 40 T for particular field angles. Here, from high-field Hall-effect measurements, T. Helm et al. find evidence for a partial compensation between the applied field and an exchange field, pointing to the Jaccarino-Peter effect as a possible mechanism for the reentrant superconductivity.

    • Toni Helm
    • , Motoi Kimata
    •  & Jean-Pascal Brison

  • Article
    | Open Access

    At the microscopic level, the localized spins arise due to the electron-electron interactions. Here, the authors show how a topological phase of the Haldane spin chain emerges in a two-orbital Hubbard model with increasing interaction strength.

    • A. Jażdżewska
    • , M. Mierzejewski
    •  & J. Herbrych

  • Article
    | Open Access

    Van der Waals antiferromagnets offer a unique platform for studying magnetism in reduced dimensions, however, the low dimensionality, combined with lack of net magnetization, renders investigation challenging with conventional experimental probes. Here, Houmes et al show how van der Waals antiferromagnets can be investigated via the resonances of a vibrating rectangular membranes of this material.

    • Maurits J. A. Houmes
    • , Gabriele Baglioni
    •  & Herre S. J. van der Zant

  • Article
    | Open Access

    “Exchange bias” occurs in heterostructures of antiferromagnets and ferromagnetic materials, which biases the magnetization of the ferromagnet so that it exhibits a preferred direction. This phenomenon has proven critical for the development of a variety of spintronic devices. Here, Hasan et al demonstrate reversible control of exchange bias via solid-state hydrogen gating.

    • M. Usama Hasan
    • , Alexander E. Kossak
    •  & Geoffrey S. D. Beach

  • Article
    | Open Access

    Shortening the inter-spin distance is an effective way to enhance magnetic coupling. However, it is typically challenging to change the inter-ion distance in most magnetic systems. Here, Huang et al present a strategy for enhancing magnetic interactions, by confining a molecular magnetic system inside a carbon fullerene cage, leading to enhanced magnetic properties.

    • Chenli Huang
    • , Rong Sun
    •  & Song Gao

  • Article
    | Open Access

    Skyrmion crystals, where skyrmions are arranged close packed in a triangular lattice arise due to the superposition of three magnetic spin spirals, each with a distinct wave vector, Q. Such skrymion crystals have been found in a diverse array of materials. Here, Park et al find a short wavelength (or dense skyrmion) limit of this skyrmion crystal structure in Co1/3TaS2, a metallic triangular lattice antiferromagnet, in the form of a triple Q magnetic ordering, with four magnetic sublattices.’

    • Pyeongjae Park
    • , Woonghee Cho
    •  & Je-Geun Park

  • Article
    | Open Access

    Hyperbolic exciton polaritons (HEPs) are anisotropic light-matter excitations with promising applications, but their steady-state observation is challenging. Here, the authors report experimental evidence of HEPs in a van der Waals magnet, CrSBr, via cryogenic infrared near-field microscopy.

    • Francesco L. Ruta
    • , Shuai Zhang
    •  & D. N. Basov

  • Article
    | Open Access

    Kondo materials exhibit extremely rich physics, from unconventional superconductivity to topological phases. Unfortunately, for a real material, direct solution of the Kondo lattice is practically impossible. Here, Simeth et al. present a tractable approach to this problem, showing how a multi-orbital periodic Anderson model can be reduced to a Kondo lattice model, and be applied to relevant materials and quantitatively validated with neutron spectroscopy.

    • W. Simeth
    • , Z. Wang
    •  & M. Janoschek

  • Article
    | Open Access

    The anomalous Hall effect is typically associated with ferromagnets and referred to as anomalous due to its persistence even after the applied magnetic field is removed, due to the net magnetization of the ferromagnet. Recently there has been much interest in antiferromagnets that can host an anomalous Hall effect, despite a vanishing magnetization, and here, Wang et al observe an anomalous Hall effect in collinearly antiferromagnetic chromium doped RuO2.

    • Meng Wang
    • , Katsuhiro Tanaka
    •  & Fumitaka Kagawa

  • Article
    | Open Access

    Soft magnetic materials are critical components of electric motors, generators and transformers, however obtaining a material that is magnetically soft, but mechanically robust and stable at high temperature is very difficult. Here, Han et al succeed in combining these disparate properties by introducing ferromagnetic Widmanstätten patterned intermetallic precipitates into a ferromagnetic alloy matrix.

    • Liuliu Han
    • , Fernando Maccari
    •  & Dierk Raabe

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