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Magnetic Dichroism in the one-electron atom

Jenkins, A. C., Strange, Paul (1993) Magnetic Dichroism in the one-electron atom. European Journal of Physics, 14 (2). pp. 80-83. ISSN 0143-0807. (doi:10.1088/0143-0807/14/2/007) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:49987)

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The difference in absorption rate of right or left circularly polarized x-rays by magnetic materials is known as magnetic dichroism and is a well established method of investigating the magnetic properties of materials on a microscopic level. In this paper we illustrate this effect with a study of magnetic dichroism in the one-electron atom. The standard relativistic one-electron atom is solved. First-order perturbation theory is used to calculate eigenfunctions in an applied constant magnetic field. These eigenfunctions are used in a golden rule calculation of the absorption rate for right and left circularly polarized light as a function of applied field. All calculations have been done analytically. The difference in absorption rates for right and left circularly polarized light for 1s to 2p1/2 is of opposite sign to the difference for 1s to 2p3/2. We comment on the significance of these results in the interpretation of dichroism experiments on magnetic materials.

Item Type: Article
DOI/Identification number: 10.1088/0143-0807/14/2/007
Uncontrolled keywords: Physics of Quantum Materials
Subjects: Q Science > QC Physics > QC174.12 Quantum theory
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Paul Strange
Date Deposited: 03 Aug 2015 09:03 UTC
Last Modified: 16 Nov 2021 10:20 UTC
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