Talk:Bi-isotropic material

I currently work with bi-anisotropy, and find that the actual usage of \kappa and \chi is used in the reverse here, compared to the litterature I am familiar with. Articles like {{cite journal|last=Alù|first=Andrea|title=First-principles homogenization theory for periodic metamaterials|journal=Physical Review B|volume=84|issue=7|doi=10.1103/PhysRevB.84.075153}} uses only the \chi parameter (stated as \kappa on the Wiki page). And this excellent textbook (in Swedish, however, but see section 4.5) [https://lup.lub.lu.se/search/publication/1038269 Get the PDF]

{{cite book|last=Kristensson|title=Elektromagnetisk Vågutbretning|publisher=Studentlitteratur|isbn=}}. Maybe this is due to different traditions in different fields?

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