Volume 14 Issue 7, July 2019

Volume 14 Issue 7

Guiding spin waves in artificial antiferromagnets

Spin waves, which can propagate free of Joule heating, may act as the information carrier in future spintronic technology. In antiferromagnets (AFMs), spin waves are fast and insensitive to external magnetic fields, but current-induced excitation and control of the propagation is difficult to achieve. Liu et al. now explore spin waves in an artificial AFM structure, which consists of periodic 100-nm-wide stripe domains with alternating upward and downward magnetization. They excite high-frequency spin waves, which propagate along the strips. Furthermore, they can reorient the domain pattern by current pulses and, thereby, control the propagation direction of the spin waves. The cover art shows spin waves propagating within domains of opposite spin polarization as indicated by the yellow and purple arrows.

Article by Yu et al

IMAGE: Hanchen Wang and Haozhen Wang, Beihang University. COVER DESIGN: Bethany Vukomanovic

Editorial

Correspondence

  • Correspondence |

    Following our call to join in the discussion over the suitability of implementing a reporting checklist for bio–nano papers, the community responds.

    • Hon S. Leong
    • , Kimberly S. Butler
    • , C. Jeffrey Brinker
    • , May Azzawi
    • , Steve Conlan
    • , Christine Dufés
    • , Andrew Owen
    • , Steve Rannard
    • , Chris Scott
    • , Chunying Chen
    • , Marina A. Dobrovolskaia
    • , Serguei V. Kozlov
    • , Adriele Prina-Mello
    • , Ruth Schmid
    • , Peter Wick
    • , Fanny Caputo
    • , Patrick Boisseau
    • , Rachael M. Crist
    • , Scott E. McNeil
    • , Bengt Fadeel
    • , Lang Tran
    • , Steffen Foss Hansen
    • , Nanna B. Hartmann
    • , Lauge P. W. Clausen
    • , Lars M. Skjolding
    • , Anders Baun
    • , Marlene Ågerstrand
    • , Zhen Gu
    • , Dimitrios A. Lamprou
    • , Clare Hoskins
    • , Leaf Huang
    • , Wantong Song
    • , Huiliang Cao
    • , Xuanyong Liu
    • , Klaus D. Jandt
    • , Wen Jiang
    • , Betty Y. S. Kim
    • , Korin E. Wheeler
    • , Andrew J. Chetwynd
    • , Iseult Lynch
    • , Seyed Moein Moghimi
    • , André Nel
    • , Tian Xia
    • , Paul S. Weiss
    • , Bruno Sarmento
    • , José das Neves
    • , Hélder A. Santos
    • , Luis Santos
    • , Samir Mitragotri
    • , Steve Little
    • , Dan Peer
    • , Mansoor M. Amiji
    • , Maria José Alonso
    • , Alke Petri-Fink
    • , Sandor Balog
    • , Aaron Lee
    • , Barbara Drasler
    • , Barbara Rothen-Rutishauser
    • , Stefan Wilhelm
    • , Handan Acar
    • , Roger G. Harrison
    • , Chuanbin Mao
    • , Priyabrata Mukherjee
    • , Rajagopal Ramesh
    • , Lacey R. McNally
    • , Sara Busatto
    • , Joy Wolfram
    • , Paolo Bergese
    • , Mauro Ferrari
    • , Ronnie H. Fang
    • , Liangfang Zhang
    • , Jie Zheng
    • , Chuanqi Peng
    • , Bujie Du
    • , Mengxiao Yu
    • , Danielle M. Charron
    • , Gang Zheng
    •  & Chiara Pastore

Thesis

Research Highlights

News & Views

  • News & Views |

    Grafting nanodroplets by surface-initiated atom transfer radical polymerization can be carried out at liquid–liquid interfaces.

    • Anna Carlmark
  • News & Views |

    The development of devices that exploit the intrinsic properties of two-dimensional materials can provide opportunities for in-memory computing and area-efficient integrated circuits based on Moore’s law.

    • Du Xiang
    • , Tao Liu
    •  & Wei Chen
  • News & Views |

    The combination of ferroelectrics and phase-change materials provides a route towards phase-change data storage at room temperature, without heating.

    • Robert E. Simpson

Review Articles

  • Review Article |

    This Review highlights the progress made so far in engineering nanomaterials for neurotechnology applications, from neuron signal sensing and modulation to brain stimulation, with an outlook on what these technologies can enable in the future.

    • Héctor Acarón Ledesma
    • , Xiaojian Li
    • , João L. Carvalho-de-Souza
    • , Wei Wei
    • , Francisco Bezanilla
    •  & Bozhi Tian

Letters

  • Letter |

    Thermal diffusion of skyrmions in a non-flat energy landscape shows exponential temperature dependence and can be used for a reshuffler device with potential application in probabilistic computing.

    • Jakub Zázvorka
    • , Florian Jakobs
    • , Daniel Heinze
    • , Niklas Keil
    • , Sascha Kromin
    • , Samridh Jaiswal
    • , Kai Litzius
    • , Gerhard Jakob
    • , Peter Virnau
    • , Daniele Pinna
    • , Karin Everschor-Sitte
    • , Levente Rózsa
    • , Andreas Donges
    • , Ulrich Nowak
    •  & Mathias Kläui
  • Letter |

    Magneto-transport measurements on thin metallic crystals of the transition metal dichalcogenide PtSe2 show signatures of ferro- and antiferromagnetic order depending on the number of layers and first-principles calculations suggest Pt vacancies at the surface as a plausible cause.

    • Ahmet Avsar
    • , Alberto Ciarrocchi
    • , Michele Pizzochero
    • , Dmitrii Unuchek
    • , Oleg V. Yazyev
    •  & Andras Kis
  • Letter |

    Eutectic Ga-In droplets can be functionalized with various polymers and co-polymers using atom transfer radical polymerization. The droplets are ready for direct solution processing to form liquid-metal nanocomposites for potential applications in soft robotics.

    • Jiajun Yan
    • , Mohammad H. Malakooti
    • , Zhao Lu
    • , Zongyu Wang
    • , Navid Kazem
    • , Chengfeng Pan
    • , Michael R. Bockstaller
    • , Carmel Majidi
    •  & Krzysztof Matyjaszewski

Articles

  • Article |

    Current pulses of 105 A cm−2 can control the orientation of 100-nm-wide stripe domains in La0.67Sr0.33MnO3 and spin waves of 10 GHz can propagate along these domains with a group velocity of 2.6 km s−1.

    • Chuanpu Liu
    • , Shizhe Wu
    • , Jianyu Zhang
    • , Jilei Chen
    • , Jinjun Ding
    • , Ji Ma
    • , Yuelin Zhang
    • , Yuanwei Sun
    • , Sa Tu
    • , Hanchen Wang
    • , Pengfei Liu
    • , Chexin Li
    • , Yong Jiang
    • , Peng Gao
    • , Dapeng Yu
    • , Jiang Xiao
    • , Rembert Duine
    • , Mingzhong Wu
    • , Ce-Wen Nan
    • , Jinxing Zhang
    •  & Haiming Yu
  • Article |

    Light scattering spectra are acquired in the near field to map dipole–dipole interactions and extract all their vectorial components with 5-nm spatial resolution.

    • Martin Esmann
    • , Simon Fabian Becker
    • , Julia Witt
    • , Jinxin Zhan
    • , Abbas Chimeh
    • , Anke Korte
    • , Jinhui Zhong
    • , Ralf Vogelgesang
    • , Gunther Wittstock
    •  & Christoph Lienau
  • Article |

    A nanoporous polyimide film filled with a solid polymer electrolyte has high ionic conductivity and high mechanical strength. An all-solid-state battery made with an approximately 10-μm-thick film shows good cyclability at 60 °C and no dendrite formation.

    • Jiayu Wan
    • , Jin Xie
    • , Xian Kong
    • , Zhe Liu
    • , Kai Liu
    • , Feifei Shi
    • , Allen Pei
    • , Hao Chen
    • , Wei Chen
    • , Jun Chen
    • , Xiaokun Zhang
    • , Linqi Zong
    • , Jiangyan Wang
    • , Long-Qing Chen
    • , Jian Qin
    •  & Yi Cui
  • Article |

    Virus nanoparticles can penetrate soil to a depth of 30 cm, thus showing potential to effectively deliver nanopesticides.

    • Paul L. Chariou
    • , Alan B. Dogan
    • , Alexandra G. Welsh
    • , Gerald M. Saidel
    • , Harihara Baskaran
    •  & Nicole F. Steinmetz

Amendments & Corrections

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