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Two-, Three-, and Four-Component Magnetic Multilayer Onion Nanoparticles Based on Iron Oxides and Manganese Oxides
Dept of Materials and Environmental Chemistry, Stockholm University, Stockholm.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
CIN2(ICN-CSIC) and Universitat Autònoma de Barcelona, Catalan Institute of Nanotechnology (ICN), Campus de la UAB, Bellaterra, Barcelona, Spanien.
CIN2(ICN-CSIC) and Universitat Autònoma de Barcelona, Catalan Institute of Nanotechnology (ICN), Campus de la UAB, Bellaterra, Barcelona, Spanien.
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2011 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 133, no 42, 16738-16741 p.Article in journal (Refereed) Published
Abstract [en]

Magnetic multilayered, onion-like, hetero-structured nanoparticles are interesting model systems for studying magnetic exchange coupling phenomena. In this work, we synthesized heterostructured magnetic nanopartides composed of two, three, or four components using iron oxide seeds for the subsequent deposition of manganese oxide. The MnO layer was allowed either to passivate fully in air to form an outer layer of Mn(3)O(4) or to oxidize partially to form MnO vertical bar Mn(3)O(4) double layers. Through control of the degree of passivation of the seeds, particles with up to four different magnetic layers can be obtained (i.e., FeO vertical bar Fe(3)O(4)vertical bar MnO vertical bar Mn(3)O(4)). Magnetic characterization of the samples confirmed the presence of the different magnetic layers.

Place, publisher, year, edition, pages
2011. Vol. 133, no 42, 16738-16741 p.
National Category
Chemical Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Materials Science
Identifiers
URN: urn:nbn:se:uu:diva-162699DOI: 10.1021/ja205810tISI: 000296678200008OAI: oai:DiVA.org:uu-162699DiVA: diva2:462384
Available from: 2011-12-07 Created: 2011-12-05 Last updated: 2017-12-08Bibliographically approved

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Lidbaum, HansLeifer, Klaus

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