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Magnetic interactions of Mn clusters supported on Cu
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics, Theoretical Magnetism.
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2006 (English)In: PHYSICAL REVIEW B, ISSN 1098-0121, Vol. 73, no 17, 174434- p.Article in journal (Refereed) Published
Abstract [en]

It is demonstrated that the magnetic interactions can be drastically different for nanosized systems compared to those of bulk or surfaces. Using a real-space formalism we have developed a method to calculate noncollinear magnetization structures and hence exchange interactions. Our results for magnetic Mn clusters supported on a Cu(111) surface show that the magnetic ordering as a rule is noncollinear and cannot always be described by using a simple Heisenberg Hamiltonian. We argue that the use of ab initio calculations allowing for noncollinear coupling between atomic spins constitutes an efficient and reliable way of analyzing nanosized magnets.

Place, publisher, year, edition, pages
2006. Vol. 73, no 17, 174434- p.
Keyword [en]
SCANNING-TUNNELING-MICROSCOPY, APPROXIMATION, SPECTROSCOPY, SCALE, STATE, FE, CO
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-19285DOI: doi:10.1103/PhysRevB.73.174434OAI: oai:DiVA.org:uu-19285DiVA: diva2:47057
Available from: 2006-11-28 Created: 2006-11-28 Last updated: 2012-03-14

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Publisher's full texthttp://link.aps.org/abstract/PRB/v73/e174434

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Bergman, AndersNordström, LarsEriksson, Olle

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