THE EFFECT OF SUBSTRATE-TEMPERATURE ON THE MAGNETIC-PROPERTIES OF FEALN THIN-FILMS FOR RECORDING-HEADS

被引:14
作者
BAIN, JA
KRYDER, MH
机构
[1] Carnegie Mellon University, Pittsburgh
基金
美国国家科学基金会;
关键词
D O I
10.1109/20.490098
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The soft magnetic properties of FeAlN films have been shown to be strongly dependent on the temperature of the substrate during deposition. Films of FeAlN were sputtered deposited onto Alumina/Titanium Carbide (ALTIC) ceramic substrates at substrate temperatures between 20 and 200 degrees C. In the range of 150 to 200 degrees C, the films display a well oriented easy axis with coercivities less than 1.5 Oe, and a hard axis coercivity of less than 1 Oe. Deposition at temperatures below 150 degrees C resulted in high coercivities and no in-plane anisotropy. This behavior is explained in terms of the temperature dependence of the formation of the gamma'-Fe4N phase (identified by x-ray diffraction), which is necessary for the soft magnetic properties. A discussion of heating transients due to substrate thermal mass is also included.
引用
收藏
页码:2703 / 2705
页数:3
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