Microstructure and magnetic properties of Ti/CoCrPt/Ti pseudo-sandwich nanogranular films

被引：10

作者：

Sun, HY ^{[1
]}

Hu, J ^{[1
]}

Su, ZF ^{[1
]}

Xu, JL ^{[1
]}

Feng, SZ ^{[1
]}

机构：

[1] Hebei Normal Univ, Coll Phys Sci & Informat Engn, Shijiazhuang 050016, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 07期

基金：

中国国家自然科学基金;

关键词：

coereivity; magnetic granular films; overlayer; perpendicular recording media;

D O I：

10.1109/TMAG.2006.874095

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：

We prepared Ti/CoCrPt/Ti pseudo-sandwich granular films by radio-frequency and dc magnetron sputtering onto glass substrates and subsequent in situ annealing. We investigated the microstructure and magnetic properties of the films as a function of Ti overlayer thickness (x). X-ray diffraction profiles show that the CoCrPt magnetic layers are formed as the hexagonal close-packed (HCP) structure. Vibrating sample magnetometer measurements indicate that the out-of-plane coercivity reaches the maximum 1675.5 Oe when x = 5 nm. Atomic force microscopy images show the minimum average grain size D = 7.2 nm and the average roughness R-a = 1.0 nm. Magnetic force microscopy images show that the minimum average magnetic cluster size is about 6.4 nm at x = 5 nm.

引用

页码：1782 / 1784

页数：3

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