Ferromagnetism articles within Nature Communications

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  • Article
    | Open Access

    A first principles understanding of the origins of the Earth's magnetic field requires the study of iron and nickel at high temperatures and pressures. Here, the authors find anomalies in the electronic properties of nickel and iron-nickel alloys, which may be important for the physics of geomagnetism.

    • A. Hausoel
    • , M. Karolak
    •  & G. Sangiovanni

  • Article
    | Open Access

    Chiral domain walls in magnetic films can be electrically controlled, which makes them attractive for applications, but domain walls in ultrathin films are normally non-chiral. Here, the authors observe chiral domain walls in ultrathin Fe/Ni bilayers that are stabilized by the magnetic anisotropy.

    • Gong Chen
    • , Sang Pyo Kang
    •  & Andreas K. Schmid

  • Article
    | Open Access

    Spontaneous magnon decay in canted antiferromagnets has been theoretically investigated extensively, but experimental evidence is limited. Here the authors study the spin ½ antiferromagnet DLCB via neutron scattering, revealing field-induced spontaneous magnon decay associated with three-magnon interactions.

    • Tao Hong
    • , Y. Qiu
    •  & A. L. Chernyshev

  • Article
    | Open Access

    Experimental identification of pairing mechanism in unconventional superconductors is challenging. Here, Wuet al. show that the field dependence of the pairing strength influences the superconducting upper critical field in UCoGe, suggesting the dominant role of ferromagnetic spin fluctuations.

    • Beilun Wu
    • , Gaël Bastien
    •  & Jean-Pascal Brison

  • Article
    | Open Access

    Magnetism deterioration is usually expected in all ferromagnetic materials with increasing temperature. Here, Maet al. report a Fe-Ga alloy with highly thermal-stable magnetization up to 880 K and with nearly no deterioration over a wide temperature range in magnetostriction.

    • Tianyu Ma
    • , Junming Gou
    •  & Mi Yan

  • Article
    | Open Access

    Spin-spin correlation is fundamental to many material properties but challenging to measure in nanomagnetic systems. Muenkset al. show that correlations between a localized spin and the electrons of its hosting bath can be quantified when coupled to another spin by an asymmetry in the differential conductance.

    • Matthias Muenks
    • , Peter Jacobson
    •  & Klaus Kern

  • Article
    | Open Access

    A large spin-splitting is essential for spintronic devices. Here, the authors observe a spontaneous spin-splitting energy of between 31.7 and 50 millielectronvolts in n-type indium iron arsenide at temperatures up to several tens of Kelvin, challenging the conventional theory of ferromagnetic semiconductors.

    • Le Duc Anh
    • , Pham Nam Hai
    •  & Masaaki Tanaka

  • Article
    | Open Access

    Functional behaviour can emerge in materials in which magnetic order is determined by the interplay of localised and itinerant magnetic interactions. Here the authors tune such magnetic order in a photovoltaic perovskite by tuning the electronic carrier concentration under visible light illumination.

    • B. Náfrádi
    • , P. Szirmai
    •  & E. Horváth

  • Article
    | Open Access

    Voltage control of magnetism in ferromagnetic semiconductor is appealing for spintronic applications, which is yet hindered by compound formation and low Curie temperature. Here, Nie et al. report electric-field control of ferromagnetism in MnxGe1−xnanomeshes with a Curie temperature above 400 K and controllable giant magnetoresistance.

    • Tianxiao Nie
    • , Jianshi Tang
    •  & Kang L. Wang

  • Article
    | Open Access

    Whilst superlattices containing thin films of 5d transition metal oxides are expected to yield strong interfacial coupling, only weak effects have been observed. Here, the authors report strong coupling between 3d SrMnO3 and 5d SrIrO3due to the interplay of strong Coulomb and spin orbit interactions.

    • John Nichols
    • , Xiang Gao
    •  & Ho Nyung Lee

  • Article
    | Open Access

    Inspired by the physics of bulk frustrated materials, arrays of coupled nanomagnets have been widely explored for the study of collective ordering and emergent behaviour. Here, the authors demonstrate interaction-driven charge screening in a thermally active artificial spin ice lattice.

    • Alan Farhan
    • , Andreas Scholl
    •  & Sebastiaan van Dijken

  • Article
    | Open Access

    A classical Hamiltonian captures key properties of spin ice materials such as residual entropy and fractionalized excitations. Here, the authors present experimental results of the polarization transition that motivate a Hamiltonian with lattice distortions, which predicts an intermediate magnetization state and competing ground state orders.

    • R. A. Borzi
    • , F. A. Gómez Albarracín
    •  & S. A. Grigera

  • Article
    | Open Access

    Emergent phenomena at the interface between a topological insulator and a ferromanget reflect broken symmetry of topological state. Here, Lee et al. report direct measurement of induced magnetism at the Bi2Se3-EnS interface, paving the way to understand emergent orders in topological material with broken time reversal symmetry.

    • Changmin Lee
    • , Ferhat Katmis
    •  & Nuh Gedik

  • Article
    | Open Access

    Contrary to ferromagnets, antiferromagnets possess no net magnetic moment, which has limited their applicability as magnetic memory media. Here, the authors demonstrate a heat-assisted multiple-stable memory based on epitaxial thin films of antiferromagnet MnTe with three-fold symmetric anisotropy.

    • D. Kriegner
    • , K. Výborný
    •  & T. Jungwirth

  • Article
    | Open Access

    Whilst Weyl fermions have characteristic effects in magnetotransport measurements in condensed matter systems, their effects on other properties remain unexplored. Here, the authors use neutron Brillouin scattering to evidence the interaction of Weyl fermions with the spin wave dynamics in SrRuO3.

    • Shinichi Itoh
    • , Yasuo Endoh
    •  & Naoto Nagaosa

  • Article
    | Open Access

    The extent to which a material revisits previously accessed magnetization states under a cycling applied magnetic field has important implications for its use in memory technology. Here, the authors demonstrate the effects of field-cooling on magnetic domain memory in exchange-biased Co/Pd thin films.

    • Karine Chesnel
    • , Alex Safsten
    •  & Eric E. Fullerton

  • Article
    | Open Access

    Oxide materials can be combined to create heterostructures exhibiting complex properties not found in either substance individually. Here, the authors observe antiferromagnetic interlayer exchange coupling between ferromagnetic lanthanum manganite and nominally paramagnetic lanthanum nickel oxide.

    • M. Gibert
    • , M. Viret
    •  & J.-M. Triscone

  • Article
    | Open Access

    In oxide materials, cation doping strongly influences the electronic correlations which promote diverse phenomena such as colossal magnetoresistance and superconductivity. Here, the authors use magnetic microscopy to image the effects of spatially ordered doping on electronic phase separation in oxide superlattices.

    • Yinyan Zhu
    • , Kai Du
    •  & Jian Shen

  • Article
    | Open Access

    Ferromagnetism and superconductivity possess inherently incompatible electronic spin ordering, and their coexistence requires elaborate engineering of material components. Here, the authors induce ferromagnetism in a two-dimensional superconducting crystal by the adsorption of hydrazine molecules.

    • Xiaojiao Zhu
    • , Yuqiao Guo
    •  & Yi Xie

  • Article
    | Open Access

    The coexistence of different magnetic and electronic phases often occurs in materials with complex chemical compositions, allowing for the study of competitive, collaborative, or emergent phenomena. Here, the authors demonstrate such behaviour in ultrathin Fe films on a Rh(001) substrate.

    • Pin-Jui Hsu
    • , Jens Kügel
    •  & Matthias Bode

  • Article
    | Open Access

    Future information storage technology may exploit electrical currents to write the states of ferromagnetic nanoelements via spin torque effects. Here, the authors demonstrate such behaviour promoted by exchange bias from an interfaced antiferromagnet, which may help overcome practical device limitations.

    • A. van den Brink
    • , G. Vermijs
    •  & B. Koopmans

  • Article
    | Open Access

    In metals, electronic scattering from defects by the two-channel Kondo effect is expected to cause deviation from standard low temperature behaviour, however this effect has not been unambiguously shown. Here, the authors present evidence consistent with all transport signatures of the effect in ferromagnetic L10-MnAl films.

    • L. J. Zhu
    • , S. H. Nie
    •  & J. H. Zhao

  • Article
    | Open Access

    In cuprates, superconductivity exists in a narrow window at high electron doping concentration with strong antiferromagnetic correlations. Here, the authors demonstrate superconductivity with no effect of antiferromagnetic order in a cuprate for a wide electron doping range following a protect anneal process.

    • M. Horio
    • , T. Adachi
    •  & A. Fujimori

  • Article
    | Open Access

    Ferromagnetism has been known as a material property of solids since the time of the ancient Greeks. Here, Shuai et al. report that magnetic nanoplates suspended in a simple solvent can spontaneously align to form a ferromagnetic liquid, capable of both producing and sensing magnetic fields.

    • M. Shuai
    • , A. Klittnick
    •  & N. A. Clark

  • Article
    | Open Access

    Spin systems on the frustrated kagome lattice exhibit classical and quantum spin liquids. Here, the authors present an anisotropic nearest-neighbour model with time-reversal symmetry which incorporates all known spin liquids, as well as promising chiral phases, into a wider unified network.

    • Karim Essafi
    • , Owen Benton
    •  & L.D.C. Jaubert

  • Article
    | Open Access

    Heusler alloy thin films with a distorted tetragonal structure have potential spintronics applications given their bulk perpendicular magnetic anisotropy. Here, the authors demonstrate large perpendicular magnetic anisotropy in Mn3Ge thin films accompanied by negative tunnelling magnetoresistance.

    • Jaewoo Jeong
    • , Yari Ferrante
    •  & Stuart S. P. Parkin

  • Article
    | Open Access

    In semiconductor spintronic devices, Hanle precession allows for electrical detection of spin accumulation however it is inhibited at room temperature in GaAs by magnetic-field effects. Here, the authors present an alternative method for detecting spin accumulation based on ferromagnetic resonance.

    • Changjiang Liu
    • , Sahil J. Patel
    •  & Paul A. Crowell

  • Article
    | Open Access

    Perovskite manganites possess a number of competing coexisting phases of charge, spin, orbital, and lattice order. Here, the authors use magnetic force microscopy to image the transition from ferromagnetic metal to charge-ordered insulator in a strained phase-separated manganite film.

    • Haibiao Zhou
    • , Lingfei Wang
    •  & Wenbin Wu

  • Article
    | Open Access

    Magnetically doped topological insulators may exhibit exotic transport phenomena such as the quantum anomalous Hall effect, however the underlying mechanisms of ferromagnetic order are currently debated. Here, the authors reveal stabilized ferromagnetism in Cr-doped (Sb,Bi)2Te3 mediated by Te and Sb p-hole carriers.

    • Mao Ye
    • , Wei Li
    •  & Xiaoming Xie

  • Article
    | Open Access

    Magnetic skyrmions are swirling magnetization textures which are topologically stabilized in helical magnets under an applied magnetic field. Here, the authors use Monte Carlo simulations to explore the stability of skyrmions against a ferromagnetic phase and their potential as single bits.

    • J. Hagemeister
    • , N. Romming
    •  & R. Wiesendanger

  • Article |

    A system’s properties near a quantum phase transition scale differently than near a finite-temperature phase transition. Here, the authors identify an anomalously small dynamic scaling exponent from magnetization and specific heat measurements in the itinerant ferromagnet SrCaRuO which is at odds with current theory.

    • C. L. Huang
    • , D. Fuchs
    •  & H. v. Löhneysen

  • Article
    | Open Access

    The interface between two insulating oxides can play host to magnetic ordering. Here, the authors manipulate the spin transport in a hybrid magnetic tunnel junction comprising two ferromagnets: one a cobalt layer and the other the interface between lanthanum aluminate and strontium titanate.

    • Thach D.N. Ngo
    • , Jung-Won Chang
    •  & Jinhee Kim

  • Article
    | Open Access

    Exploring magnetic excitations and spin textures on the nanoscale may lead to new spintronic technologies and new understanding of condensed matter. Here, the authors demonstrate the potential of single electron spins in diamond to image such excitations by characterizing spin waves in a ferromagnetic microdisc.

    • Toeno van der Sar
    • , Francesco Casola
    •  & Amir Yacoby

  • Article
    | Open Access

    Sc3In and ZrZn2 are the only two known itinerant ferromagnets that form from non-magnetic constituents. Now, Svanidze et al.,evidence itinerant antiferromagnetism in TiAu below 36 K using thermodynamic, transport, muon-based and neutron-based measurements, and density functional analysis.

    • E. Svanidze
    • , Jiakui K. Wang
    •  & E. Morosan

  • Article
    | Open Access

    Spin triplet superconductivity may benefit spintronics, providing dissipation-free spin-polarized currents. Here, the authors demonstrate macroscopic quantum tunnelling in spin filter Josephson junctions containing a ferromagnetic insulator barrier of GdN, evidencing unconventional superconductivity below 100 mK.

    • D. Massarotti
    • , A. Pal
    •  & F. Tafuri

  • Article
    | Open Access

    Molecular magnets are among the smallest structures that may be exploited for quantum information processing. Here, Guidi et al. use polarized neutron scattering to observe finite size effects and a noncollinear spin arrangement in a Cr8Cd ring molecule, an even-numbered open antiferromagnetic spin-3/2 chain.

    • T. Guidi
    • , B. Gillon
    •  & R. E. P. Winpenny

  • Article |

    Domain walls in ferroelectrics can lead to phenomena different from the bulk. Here the authors achieve polarization control of charged domain walls in improper ferroelectrics by magnetic fields that convert neutral into charged domain walls.

    • Naëmi Leo
    • , Anders Bergman
    •  & Dennis Meier

  • Article |

    The control of the magnetic order by optical pulses is of practical relevance for information storage as well as of fundamental interest to understand magnetic processes. Here, the authors demonstrate the control of magnetic order by changing the carrier density in Eu1−xGdxO via resonant photoexcitation.

    • Masakazu Matsubara
    • , Alexander Schroer
    •  & Manfred Fiebig

  • Article
    | Open Access

    Electronic interactions underlie the exchange interaction responsible for the magnetic ordering and dynamics of magnetic materials. Here, Mentink et al. theoretically demonstrate the ultrafast and reversible tuning of the exchange interaction in Mott insulators driven by a time-periodic electric field.

    • J. H. Mentink
    • , K. Balzer
    •  & M. Eckstein

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