COMPARISON OF MAGNETIC-ANISOTROPY AND MAGNETIZATION REVERSAL IN PERPENDICULAR RECORDING MEDIA

被引：8
|
作者：
LAIRSON, BM [1 ]
LIU, W [1 ]
PAYNE, AP [1 ]
BALDWIN, C [1 ]
HAMILTON, H [1 ]
机构：
[1] CENSTOR CORP,SAN JOSE,CA 95126
来源：
JOURNAL OF APPLIED PHYSICS | 1995年 / 77卷 / 12期
关键词：
D O I：
10.1063/1.359080
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Comparisons of magnetic anisotropy and switching behavior of CoCr-based alloy and Co/Pd multilayer media were made using a vector vibrating sample magnetometer. Magnetic anisotropy energy was determined from angle-dependent measurements of the transverse magnetization, using a simple approximate expression for transverse moment versus applied field and rotation angle. Switching behavior was deduced from hysteresis and angle-dependent energy-loss measurements. The multilayers were found to switch by curling and domain wall motion, while the Co78Cr17Ta5 and Co 70Cr15Ta5Pt10 media were found to switch by nearly coherent (Stoner-Wohlfarth) rotation. Plasma oxidation of the multilayers was found to slightly reduce the amount of coupling, but degraded readback amplitude to a contact recording transducer. © 1995 American Institute of Physics.
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页码：6675 / 6680
页数：6
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