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Title
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Spin effects in electron vortex states
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Author
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Abstract
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| The recent experimental realization of electron vortex beams opens up a wide research domain previously unexplored. The present paper explores the relativistic properties of these electron vortex beams, and quantifies deviations from the scalar wave theory. It is common in electron optics to use the Schrodinger equation neglecting spin. The present paper investigates the role of spin and the total angular momentum J(z) and how it pertains to the vortex states. As an application, we also investigate if it is possible to use holographic reconstruction to create novel total angular momentum eigenstates in a transmission electron microscope. It is demonstrated that relativistic spin coupling effects disappear in the paraxial limit, and spin effects in holographically created electron vortex beams can only be exploited by using specialized magnetic apertures. |
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Language
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English
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Source (journal)
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Europhysics letters / Société européenne de physique. - Les Ulis, 1986, currens
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Publication
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Les Ulis
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Les éditions de physique
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2013
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ISSN
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0295-5075
1286-4854
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DOI
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10.1209/0295-5075/102/40010
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Volume/pages
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102
:4
(2013)
, p. 1-6
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Article Reference
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40010
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ISI
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000321118600011
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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