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dc.contributor.authorDirdal, Christopher Andrew
dc.contributor.authorSkaar, Johannes
dc.date.accessioned2019-03-12T13:01:17Z
dc.date.available2019-03-12T13:01:17Z
dc.date.created2018-07-31T14:54:25Z
dc.date.issued2018
dc.identifier.citationEuropean Physical Journal B : Condensed Matter Physics. 2018, 91 (6), .nb_NO
dc.identifier.issn1434-6028
dc.identifier.urihttp://hdl.handle.net/11250/2589712
dc.description.abstractIt is well known that the usual Kramers–Kronig relations for the relative permeability function μ(ω) are not compatible with diamagnetism (μ(0) < 1) and a positive imaginary part (Im μ(ω) > 0 for ω > 0). We demonstrate that a certain physical meaning can be attributed to μ for all frequencies, and that in the presence of spatial dispersion, μ does not necessarily tend to 1 for high frequencies ω and fixed wavenumber k. Taking the asymptotic behavior into account, diamagnetism can be compatible with Kramers–Kronig relations even if the imaginary part of the permeability is positive. We provide several examples of diamagnetic media and metamaterials for which μ(ω, k) ↛ 1 as ω →∞.
dc.language.isoengnb_NO
dc.publisherEDP Sciencesnb_NO
dc.titleDiamagnetism and the dispersion of the magnetic permeabilitynb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber7nb_NO
dc.source.volume91nb_NO
dc.source.journalEuropean Physical Journal B : Condensed Matter Physicsnb_NO
dc.source.issue6nb_NO
dc.identifier.doi10.1140/epjb/e2018-80515-1
dc.identifier.cristin1599212
dc.description.localcodeThis is a post-peer-review, pre-copyedit version of an article published in European Physical Journal B : Condensed Matter Physics Locked until 22.06.2019 due to copyright restrictions. The final authenticated version is available online at: https://doi.org/10.1140/epjb/e2018-80515-1nb_NO
cristin.unitcode194,63,35,0
cristin.unitnameInstitutt for elektroniske systemer
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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