Review Article

Off-axis electron holography of magnetic nanowires and chains, rings, and planar arrays of magnetic nanoparticles

  1. Rafal E. Dunin-Borkowski1,2,*,
  2. Takeshi Kasama1,2,
  3. Alexander Wei3,
  4. Steven L. Tripp3,
  5. Martin J. Hÿtch4,
  6. Etienne Snoeck5,
  7. Richard J. Harrison6,
  8. Andrew Putnis7

Article first published online: 17 NOV 2004

DOI: 10.1002/jemt.20098

Issue

Microscopy Research and Technique

Microscopy Research and Technique

Special Issue: Nanomaterials Characterization Using Microscopy—Part I

Volume 64, Issue 5-6, pages 390–402, August 2004

Additional Information

How to Cite

Dunin-Borkowski, R. E., Kasama, T., Wei, A., Tripp, S. L., Hÿtch, M. J., Snoeck, E., Harrison, R. J. and Putnis, A. (2004), Off-axis electron holography of magnetic nanowires and chains, rings, and planar arrays of magnetic nanoparticles. Microsc. Res. Tech., 64: 390–402. doi: 10.1002/jemt.20098

Author Information

  1. 1

    Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdom

  2. 2

    RIKEN (The Institute of Physical and Chemical Research), Advanced Research Laboratory, Hitachi Ltd., Hatoyama, Saitama, 350-0395, Japan

  3. 3

    Department of Chemistry, Purdue University, West Lafayette, Indiana 47907

  4. 4

    CECM-CNRS, 94407 Vitry-sur-Seine, France

  5. 5

    CEMES-CNRS, 31055 Toulouse, France

  6. 6

    Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, United Kingdom

  7. 7

    Institut für Mineralogie, Universität Münster, D-48149 Münster, Germany

*Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK

Publication History

  1. Issue published online: 17 NOV 2004
  2. Article first published online: 17 NOV 2004
  3. Manuscript Accepted: 28 MAY 2004
  4. Manuscript Received: 20 JAN 2004

Funded by

  • Royal Society
  • EPSRC
  • National Science Foundation. Grant Number: 0243496-CHE
  • Department of Defense
  • Birck Nanotechnology Center at Purdue University
  • DFG
  • CNRS
  • European Community

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Keywords:

  • magnetic induction mapping;
  • electron holography;
  • nanoparticles;
  • nanowires

Abstract

A selection of recent results illustrating the application of off-axis electron holography to the study of magnetic microstructure in closely-spaced nanoparticles and nanowires is reviewed. Examples are taken from the characterization of FeNi nanoparticle chains, Co nanoparticle rings, two-dimensional arrays of naturally occurring magnetite crystals in minerals, and single crystalline Co nanowires. Approaches that can be used to separate the magnetic signal of interest from the mean inner potential contribution to the measured holographic phase shift are described, and the spatial and phase resolution that can be achieved are discussed. Microsc. Res. Tech. 64:390–402, 2004. © 2004 Wiley-Liss, Inc.

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