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Magnetostatic Waves in a Coaxial Cylindrical Magnetic Domain
Author(s) -
Sigal M. A.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221210116
Subject(s) - coaxial , cylinder , physics , surface (topology) , degenerate energy levels , matrix (chemical analysis) , domain (mathematical analysis) , mode (computer interface) , mechanics , mathematical analysis , classical mechanics , geometry , mathematics , materials science , engineering , computer science , quantum mechanics , electrical engineering , composite material , operating system
Abstract The magnetostatic problem of a coaxial cylindrical magnetic domain (CMD) (two coaxial oppositely magnetized cylinders) is solved. A disintegrated set of equations which describe separately surface and volume modes in a CMD and the matrix is derived. The characteristic equations determining the eigenfrequencies of the magnetostatic modes are obtained. It is shown that the uniform mode in CMD is a surface one and its eigenfrequency depends on the ratio of the cylinder radii, whereas the uniform mode in the matrix is a degenerate volume mode with the corresponding frequency ω a ‐ γ H a .