Electromagnetic analysis of layered magnetic/conductor structures
2000 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, E-ISSN 1361-6463, Vol. 33, no 7, 773-779 p.Article in journal (Refereed) Published
A method is described for calculating the impedance of conductor structures comprised of ferromagnetic and non-magnetic layers of arbitrary cross sectional shape with transverse dimensions which are small compared to the conductors length. The method is exemplified on a conductor of axial symmetry enclosed in a high permeability film of uniaxial anisotropy along the conductor axis. To find the impedance the full boundary value problem for the vector potential is solved, allowing driving and eddy currents in both the conductor and the magnetic film, and taking into account the dynamics of the magnetization governed by the Landau-Lifshitz equations. The results obtained are used to model the giant magneto impedance effect in ferromagnetically coated wires.
Place, publisher, year, edition, pages
2000. Vol. 33, no 7, 773-779 p.
coated wire antennas, magneto-impedance, amorphous wires, plated wire, magnetoimpedance, anisotropy, inductors
IdentifiersURN: urn:nbn:se:kth:diva-19722ISI: 000086783800005OAI: oai:DiVA.org:kth-19722DiVA: diva2:338414
QC 201005252010-08-102010-08-10Bibliographically approved