| Self-assembly of magnetic Ni nanoparticles into 1D arrays with antiferromagnetic order. | |
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MedLine Citation:
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PMID: 19417526 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this paper, we report on the magnetic properties of isolated nanoparticles and interacting nanochains formed by the self-assembly of Ni nanoparticles. The magnetic properties were studied using superconducting quantum interference device (SQUID) magnetometry and magnetic force microscopy (MFM). We demonstrate that single-domain Ni nanoparticles spontaneously form one-dimensional (1D) chains under the influence of an external magnetic field. Furthermore, such magnetic field-driven self-assembly in conjunction with surface templating produces regular arrays of 1D nanochains with antiferromagnetic intra-chain order. The antiferromagnetic order, which is in striking contrast to what is found for non-interacting nanoparticle assemblies within the chains, can be evidenced from MFM and SQUID measurements. |
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Authors:
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V Bliznyuk; S Singamaneni; S Sahoo; S Polisetty; Xi He; Ch Binek |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2009-02-17 |
Journal Detail:
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Title: Nanotechnology Volume: 20 ISSN: 1361-6528 ISO Abbreviation: Nanotechnology Publication Date: 2009 Mar |
Date Detail:
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Created Date: 2009-05-06 Completed Date: 2009-07-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101241272 Medline TA: Nanotechnology Country: England |
Other Details:
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Languages: eng Pagination: 105606 Citation Subset: IM |
Affiliation:
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College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, MI 49008, USA. valery.bliznyuk@wmich.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Crystallization
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methods* Macromolecular Substances / chemistry Magnetics / methods* Materials Testing Molecular Conformation Nanostructures / chemistry*, ultrastructure* Nanotechnology / methods* Nickel / chemistry* Particle Size Surface Properties |
| Chemical | |
Reg. No./Substance:
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0/Macromolecular Substances; 7440-02-0/Nickel |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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