Recent Progress in Lorentz Transmission Electron Microscopy

Free access article

Issue		ESOMAT 2009 2009


Article Number		01002
Number of page(s)		6
Section		Keynote Lectures
DOI		http://dx.doi.org/10.1051/esomat/200901002
Published online		01 September 2009

ESOMAT 2009, 01002 (2009)
DOI: 10.1051/esomat/200901002

Marc De Graef

Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh PA 15213-3890, USA

degraef@cmu.edu

Published online: 1 September 2009

Abstract
After a brief review of the basic methods of Lorentz transmission electron microscopy (LTEM), including the Transp ort-of-Intensity formalism for phase reconstruction, we present a few examples of the application of LTEM to multiferroic materials, in this case ferromagnetic shape memory alloys. We discuss observations of magnetic domain walls pinned to anti-phase boundaries in Ni₂MnGa, and domain wall behavior under an in-situ applied magnetic field in Fe-Pd-Co.

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