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© 2018

Chiral and Topological Nature of Magnetic Skyrmions

Book

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxi
  2. Shilei Zhang
    Pages 1-30
  3. Shilei Zhang
    Pages 89-114
  4. Shilei Zhang
    Pages 115-116
  5. Back Matter
    Pages 117-117

About this book

Introduction

This book focuses on the characterisation of the chiral and topological nature of magnetic skyrmions in noncentrosymmetric helimagnets. In these materials, the skyrmion lattice phase appears as a long-range-ordered, close-packed grid of nearly millimetre-level correlation length, while the size of a single skyrmion is 3–100 nm. This is a very challenging range of length scales (spanning 5 orders of magnitude from tens of nm to mm) for magnetic characterisation techniques, and, to date, extensive information on this fascinating, magnetically ordered state has remained elusive. In response, this work develops novel resonant elastic x-ray scattering (REXS) techniques, which allow the magnetic structure, including the long-range order and domain formation, as well as microscopic skyrmion parameters, to be measured across the full range of length scales. Most importantly, using circular dichroism in REXS, the internal structure of a given skyrmion, the topological winding number, and the skyrmion helicity angle can all be unambiguously determined. These new techniques are applicable to many materials systems, and allow us to retrieve information on modulated spin structures, multiferroic order, spin-density-waves, and other forms of topological magnetic order.


Keywords

Skyrmions Resonant Elastic X-ray Scattering X-ray Spectroscopy Magnetic Skyrmion X-ray Magnetic Circular Dichroism Spintronics Topological Materials Topological Magnetic Order

Authors and affiliations

  1. 1.Clarendon Laboratory, Department of PhysicsUniversity of OxfordOxfordUK

About the authors

Shilei Zhang received his B.Eng. and M.Eng. degrees in Materials Physics from the University of Science and Technology Beijing. As a visiting scientist in Oxford's Clarendon Laboratory, he worked on magnetic devices, before joining in 2012 as a D.Phil. student in physics under the supervision of Prof. Thorsten Hesjedal.    

 

Bibliographic information

  • Book Title Chiral and Topological Nature of Magnetic Skyrmions
  • Authors Shilei Zhang
  • Series Title Springer Theses
  • Series Abbreviated Title Springer Theses
  • DOI https://doi.org/10.1007/978-3-319-98252-6
  • Copyright Information Springer Nature Switzerland AG 2018
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy Physics and Astronomy (R0)
  • Hardcover ISBN 978-3-319-98251-9
  • Softcover ISBN 978-3-030-07472-2
  • eBook ISBN 978-3-319-98252-6
  • Series ISSN 2190-5053
  • Series E-ISSN 2190-5061
  • Edition Number 1
  • Number of Pages XXI, 117
  • Number of Illustrations 0 b/w illustrations, 46 illustrations in colour
  • Topics Magnetism, Magnetic Materials
    Spectroscopy and Microscopy
  • Buy this book on publisher's site