Electrodynamic boundary conditions for planar arrays of thin magnetic elements
- Department of Physics, Oakland University, 2200 N. Squirrel Rd., Rochester, Michigan 48309-4401 (United States)
- Kotelnikov Institute of Radio-engineering and Electronics of RAS, 11-7 Mokhovaya St., Moscow 125009 (Russian Federation)
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.
- OSTI ID:
- 22489163
- Journal Information:
- Applied Physics Letters, Vol. 107, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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