Title :
Fourier transform a tool for noninvasive characterization of magnetization processes in soft ferrite
Author :
Caltun, O.F. ; Nistor, I. ; Sava, A. ; Stancu, A.
Author_Institution :
Fac. of Phys., Al.I. Cuza Univ., Iasi, Romania
Abstract :
Summary form only given. Mn-Zn and Ni-Zn ferrite samples with different doping levels and sintering temperatures have different microstructures. The spectral analysis of the time rate magnetic flux density proves that at high frequency the wall motions are damped and the spin rotation mechanism leads the magnetization process. In each case the microstructure is correlated with the values of the spectral coefficients.
Keywords :
Fourier transforms; crystal microstructure; ferrites; magnetic domain walls; magnetisation; manganese compounds; nickel compounds; sintering; soft magnetic materials; zinc compounds; (MnZn)Fe/sub 2/O/sub 4/; (NiZn)Fe/sub 2/O/sub 4/; Fourier transform; Mn-Zn ferrite; Ni-Zn ferrite; doping level; high frequency damped domain wall motions; magnetization processes; microstructure; noninvasive characterization; sintering temperature; soft ferrite; spectral analysis; spin rotation mechanism; time rate magnetic flux density; Doping; Ferrites; Fourier transforms; Frequency; Magnetic flux density; Magnetization processes; Microstructure; Motion analysis; Spectral analysis; Temperature;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000898
