Exchange Bias in Fe@Cr Core-Shell Nanoparticles
journal contribution
posted on 2013-09-11, 14:39 authored by Christopher Binns, Muhammad T. Qureshi, Davide Peddis, Stephen H. Baker, Paul B. Howes, Adrian Boatwright, Stuart A. Cavill, Sarnjeet S. Dhesi, Leonardo Lari, Roland Kröger, Sean LangridgeWe have used X-ray magnetic circular dichroism and magnetometry to study isolated Fe@Cr core−shell nanoparticles with an Fe core diameter of 2.7 nm (850 atoms) and a Cr shell thickness varying between 1 and 2 monolayers. The addition of Cr shells significantly reduces the spin moment but does not change the orbital moment. At least two Cr atomic layers are required to stabilize a ferromagnetic/antiferromagnetic interface and generate the associated exchange bias and increase in coercivity.
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Citation
Nano Letters, 2013, 13 (7), pp. 3334–3339Author affiliation
/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and AstronomyVersion
- AM (Accepted Manuscript)
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Nano LettersPublisher
American Chemical Societyissn
1530-6984eissn
1530-6992Copyright date
2013Available date
2014-06-07Publisher DOI
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http://pubs.acs.org/doi/abs/10.1021/nl401587tNotes
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/nl401587t.Language
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