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In situ TEM observation of magnetic materials

✍ Scribed by Mihaela Tanase; Amanda K. Petford-Long

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
351 KB
Volume
72
Category
Article
ISSN
1059-910X

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✦ Synopsis

Abstract

Magnetic nanostructures and thin films display novel magnetization reversal behavior as a function of size and shape, which makes them appropriate for a range of technological applications. The spatial resolution of in situ transmission electron microscopy techniques such as Lorentz TEM (LTEM) and off‐axis electron holography are well suited to analysis of the magnetic domain structure and magnetization behavior of these magnetic nanostructures and thin films. In this article the various techniques that are applicable are described, including the qualitative LTEM imaging modes and the differential phase contrast technique. In addition, quantitative methods for mapping the magnetic induction via phase reconstruction are discussed. In each case the advantages and limitations are presented. Application of the techniques to various types of magnetic structures is then presented, and the article ends with a short summary and a discussion of future developments in this field. Microsc. Res. Tech., 2009. Published 2009 Wiley‐Liss, Inc.

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