%0 Journal Article
%T Effect of Laser Annealing on Permeability Spectra in Co-based Amorphous Ribbon
%A KJJang
%A SJAhn
%A CGKim
%A SSYoon
%A SCYu
%A <br>
%J 材料科学技术学报
%D 2000
%I 
%X We investigated the variation of permeability spectra and relaxation frequency in Go-based amorphous ribbon annealed by pulsed Nd:YAG laser at various annealing energy E-a. The complex permeability spectra varies sensitively with the annealing energy, where the spectra could be decomposed into two contributions from domain wall motion. mu(dw)(f) and rotational magnetization mu(rot)(f) by analyzing the measured spectra as a function of driving ac field amplitude. The magnitude of mu(dw)(f) and mu(rot)(f) in dc limit shows maximum at E-a = 176 mJ. The maximum relaxation frequency for rotational magnetization, determined by mu"(f) curve, is about 700 kHz at E-a=62 mJ but that for wall motion is about 26 kHz at 230 mJ. These variations reflect the increase of magnetic softness and microstructural change by the annealing.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=FB916C89DF9D8870FE4E36ADBD7E8B11&yid=9806D0D4EAA9BED3&vid=7801E6FC5AE9020C&iid=0B39A22176CE99FB&sid=A8DE7703CC9E390F&eid=E22B6B8FE86DD8F9&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0