Title :
Picosecond-pulse and millimeter-wave spectroscopy of barium ferrite
Author :
McKnight, S.W. ; Carin, L. ; Vittoria, C. ; Wahid, S.F. ; Agi, K. ; Kralj, D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
fDate :
3/1/1996 12:00:00 AM
Abstract :
Transmission measurements of a barium ferrite pressed-powder sample have been made with an optically switched picosecond-pulse spectrometer. By comparison to millimeter-wave spectroscopy of the same sample, features related to the ferrimagnetic resonance have been identified in the pulse spectrum. Time-domain spectra predicted from models of the permeability indicate significant discrepancies with the experimental short-pulse line shape
Keywords :
Fourier transform spectra; barium compounds; ferrimagnetic resonance; ferrites; magnetic particles; magnetic permeability; millimetre wave spectra; spectral line breadth; Ba ferrite pressed-powder sample; BaFe12O19; Fourier analysis; ferrimagnetic resonance; millimeter-wave spectroscopy; optically switched picosecond-pulse spectrometer; permeability; short-pulse line shape; time-domain spectra; transmission measurements; Barium; Ferrimagnetic materials; Ferrites; Millimeter wave measurements; Optical pulses; Permeability; Predictive models; Resonance; Spectroscopy; Time domain analysis;
Journal_Title :
Magnetics, IEEE Transactions on
