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Negative permeability of magnetic nanocomposite films for designing left-handed metamaterials

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dc.contributor.author Mitsumata, Chiharu en
dc.contributor.author Tomita, Satoshi en
dc.date.accessioned 2011-12-05T01:52:25Z en
dc.date.available 2011-12-05T01:52:25Z en
dc.date.issued 2007-11-26 en
dc.identifier.issn 0003-6951 en
dc.identifier.uri http://hdl.handle.net/10061/6656 en
dc.description.abstract We have theoretically evaluated magnetic permeability of Ni nanocomposite films, in which the dipolar interactions between the Ni particles are considered explicitly. A numerical model of the nanocomposite is constructed according to our recent experimental results and a micromagnetic calculation is conducted. We show that the value of permeability strongly depends on the volume fraction and randomness of the particles. Particularly, as the randomness of the particles increases, the negative value of permeability drastically shrinks. However, the region of applied field, where the permeability is negative, becomes broader. This is advantageous for the broadband left-handed metamaterials in microwave regions. © 2007 American Institute of Physics. ja
dc.language.iso en en
dc.publisher American Institute of Physics en
dc.rights Copyright (C) 2007 American Institute of Physics. en
dc.title Negative permeability of magnetic nanocomposite films for designing left-handed metamaterials en
dc.type.nii Journal Article en
dc.textversion publisher en
dc.identifier.ncid AA00543431 en
dc.identifier.jtitle APPLIED PHYSICS LETTERS en
dc.identifier.volume 91 en
dc.identifier.issue 22 en
dc.relation.doi 10.1063/1.2816894 en
dc.identifier.artnum 223104 en
dc.identifier.NAIST-ID 73293367 en


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