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Controlling the Magnetization Direction in Molecules via Their Oxidation State
Institut für Festkörperforschung, Forschungszentrum Jülich.ORCID iD: 0000-0003-4341-5663
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2008 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 100, no 11Article in journal (Refereed) Published
Abstract [en]

By means of ab initio calculations we predict that it is possible to manipulate the magnetization direction in organic magnetic molecules by changing their oxidation state. We demonstrate this novel effect on the Eu2(C8H8)3 molecule, in which the hybridization of the outer π ring states with the Eu4f states causes a redistribution of the orbitals around the Fermi level leading to a strong ferromagnetism due to a hole-mediated exchange mechanism. As a key result, we predict an oscillatory behavior of the easy axis of the magnetization as a function of the oxidation state of the molecule—a new effect, which could lead to new technological applications.

Place, publisher, year, edition, pages
American Physical Society (APS) , 2008. Vol. 100, no 11
Keyword [en]
SINGLE-ELECTRON TRANSISTOR, SANDWICH CLUSTERS, AB-INITIO, CYCLOOCTATETRAENE, DISTRIBUTIONS, ANISOTROPY, MECHANISM
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-62538DOI: 10.1103/PhysRevLett.100.117207ISI: 000254292300063OAI: oai:DiVA.org:kth-62538DiVA: diva2:480572
Note
QC 20120124Available from: 2012-01-19 Created: 2012-01-19 Last updated: 2017-12-08Bibliographically approved

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Bergqvist, Lars

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