Spin wave excitation on amorphous Co(80+x)TM(12)B(8-x) alloys

Authors
Yu, SCHan, SMKim, KYNoh, TH
Issue Date
1996-05
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.157, pp.237 - 238
Abstract
Amorphous Co(80+x)TM(12)B(8-x) (TM = Ti, Zr, Hf, Nh; x = 0, 2, 4 at%) alloys were prepared by the single-roller melt-spinning technique. The saturation magnetization of the amorphous ribbons was measured by a SQUID and a vibrating sample magnetometer at 5-800 K under an applied field of 10 kOe. Typical thermo-magnetization curves were observed, and average values of the spectroscopic splitting g factor were estimated from the ferromagnetic resonance (FMR) curve. For all the amorphous alloys studied here, the saturation magnetization in the temperature range 5 K up to about 0.3T(C) can be described by the Bloch relation, M(s)(T) = M(s)(0)(1 - BT3/2 - CT5/2). The spin wave stiffness constants were calculated from the values of M(s)(0), B and the spectroscopic splitting g factor.
Keywords
spin wave excitation; amorphous; spectroscopic splitting factor
ISSN
0304-8853
URI
https://pubs.kist.re.kr/handle/201004/144450
DOI
10.1016/0304-8853(95)01227-3
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KIST Article > Others
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