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Title: Electrodynamic boundary conditions for planar arrays of thin magnetic elements

Approximate electrodynamic boundary conditions are derived for an array of dipolarly coupled magnetic elements. It is assumed that the elements' thickness is small compared to the wavelength of an electromagnetic wave in a free space. The boundary conditions relate electric and magnetic fields existing at the top and bottom sides of the array through the averaged uniform dynamic magnetization of the array. This dynamic magnetization is determined by the collective dynamic eigen-excitations (spin wave modes) of the array and is found using the external magnetic susceptibility tensor. The problem of oblique scattering of a plane electromagnetic wave on the array is considered to illustrate the use of the derived boundary conditions.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3] ;  [2] ;  [2]
  1. Department of Physics, Oakland University, 2200 N. Squirrel Rd., Rochester, Michigan 48309-4401 (United States)
  2. (Russian Federation)
  3. Kotelnikov Institute of Radio-engineering and Electronics of RAS, 11-7 Mokhovaya St., Moscow 125009 (Russian Federation)
Publication Date:
OSTI Identifier:
22489163
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOUNDARY CONDITIONS; COMPARATIVE EVALUATIONS; ELECTROMAGNETIC RADIATION; MAGNETIC FIELDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; SCATTERING; SPIN WAVES; TENSORS; THICKNESS; WAVELENGTHS