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  Comment on “Magnetic circular dichroism versus orbital magnetization”

Altarelli, M. (2020). Comment on “Magnetic circular dichroism versus orbital magnetization”. Physical Review Research, 2(4): 048001. doi:10.1103/PhysRevResearch.2.048001.

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PhysRevResearch.2.048001.pdf (Publisher version), 143KB
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PhysRevResearch.2.048001.pdf
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Open Access. - Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
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© the Author(s). Published by the American Physical Society

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Altarelli, M.1, Author              
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1Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              

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 Abstract: In a recent article [Resta, Phys. Rev. Research 2, 023139 (2020)] it is argued, based on the dichroic sum rules derived from the modern theory of orbital magnetization, that the x-ray magnetic circular dichroism (XMCD) orbital magnetization sum rule is not providing an expectation value of the orbital angular momentum and of the orbital part of the magnetic moment, but a different quantity, also related to the breakdown of time-reversal invariance, but different. In this Comment, it is shown that this conclusion is incorrect, and that the XMCD sum rule, within its assumptions, delivers an essentially exact expectation value of the orbital angular momentum and of the orbital moment.

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Language(s): eng - English
 Dates: 2020-07-102020-06-162020-09-302020-10-19
 Publication Status: Published online
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 Rev. Type: Internal
 Identifiers: DOI: 10.1103/PhysRevResearch.2.048001
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Title: Physical Review Research
Source Genre: Journal
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Pages: - Volume / Issue: 2 (4) Sequence Number: 048001 Start / End Page: - Identifier: ISSN: 2643-1564