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Quantitative in situ magnetization reversal studies in Lorentz microscopy and electron holography

AuthorsRodríguez, Luis A.; Magen, Cesar; Snoeck, E.; Serrano-Ramón, Luis; Prieto, J. L.; Muñoz, Montserrat; Algarabel, Pedro A. ; Morellón, Luis; Teresa, José María de ; Ibarra, M. Ricardo
KeywordsIn situ magnetic field
Transmission electron microscopy
Magnetic materials
Electron holography
Lorentz microscopy
Issue Date2013
CitationUltramicroscopy 134: 144-154 (2013)
AbstractA generalized procedure for the in situ application of magnetic fields by means of the excitation of the objective lens for magnetic imaging experiments in Lorentz microscopy and electron holography is quantitatively described. A protocol for applying magnetic fields with arbitrary in-plane magnitude and orientation is presented, and a freeware script for Digital Micrograph¿ is provided to assist the operation of the microscope. Moreover, a method to accurately reconstruct hysteresis loops is detailed. We show that the out-of-plane component of the magnetic field cannot be always neglected when performing quantitative measurements of the local magnetization. Several examples are shown to demonstrate the accuracy and functionality of the methods.
Identifiersdoi: 10.1016/j.ultramic.2013.06.003
issn: 0304-3991
e-issn: 1879-2723
Appears in Collections:(ICMA) Artículos
(IMN-CNM) Artículos
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