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On the Calculation of the Phase Shift of a Superconducting Flux Line Lattice

Published online by Cambridge University Press:  02 July 2020

M. Beleggia ,
G. Pozzi  and
A. Tonomura
M. Beleggia
Affiliation:
Department of Physics and Istituto Nazionale per la Fisica della Materia, University of Bologna, viale B. Pichat 6/2, 1-40127, Bologna, Italy.
G. Pozzi
Affiliation:
Department of Physics and Istituto Nazionale per la Fisica della Materia, University of Bologna, viale B. Pichat 6/2, 1-40127, Bologna, Italy.
A. Tonomura
Affiliation:
Advanced Research Laboratory, Hitachi Ltd., Hatoyama, Saitama350-0395, Japan.
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Extract

Recently out-of-focus, low angle electron diffraction and Foucault experiments have been carried out on superconducting specimens in a range of applied magnetic fields where the fluxons form a more or less regular lattice. Let us recall that in order to describe the effect on the electron beam in a transmission experiment of a fluxon in a tilted specimen, the fluxon itself has been approximated by a suitable bundle of straight flux tubes, relying on the important result that the phase shift of the flux tube can be calculated analytically even in the tilted specimen geometry. In this way, it is only necessary to convolute this phase shift with the chosen projected magnetic field distribution (in our case a London model with a phenomenological penetration depth of 50 nm) in order to obtain a fairly realistic model. Therefore, in order to interpret the main features of the experimental results,

Type
Image Simulation and Image Processing Techniques
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 1032 - 1033
Copyright
Copyright © Microscopy Society of America

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References

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