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The making of ferromagnetic Fe doped ZnO nanoclusters
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science.
2009 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 94, no 19, 192503- p.Article in journal (Refereed) Published
Abstract [en]

In this letter, the authors present a study of the energetics and magnetic interactions in Fe doped ZnO clusters by ab initio density functional calculations. The results indicate that defects under suitable conditions can induce ferromagnetic interactions between the dopant Fe atoms whereas antiferromagnetic coupling dominates in a neutral defect-free cluster. The calculations also reveal an unusual ionic state of the dopant Fe atom residing at the surface of the cluster, a feature that is important to render the cluster ferromagnetic.

Place, publisher, year, edition, pages
2009. Vol. 94, no 19, 192503- p.
Keyword [en]
ab initio calculations, antiferromagnetic materials, crystal defects, density functional theory, ferromagnetic materials, II-VI semiconductors, iron, magnetic semiconductors, nanostructured materials, semiconductor doping, zinc compounds
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-129044DOI: 10.1063/1.3136904ISI: 000266263400039OAI: oai:DiVA.org:uu-129044DiVA: diva2:337497
Available from: 2010-08-06 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Sanyal, Biplab

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