Effect of Anodized Aluminum Oxide Underlayer on the Magnetic Properties and Structure of Smtbco Magnetic Films

被引：3

作者：

Jin Fang ^{[1
]}

Li Zuo-Yi ^{[2
]}

Yan Jun-Bing ^{[2
]}

Lin Geng-Qi ^{[2
]}

机构：

[1] China Univ Geosci, Fac Mech & Elect Informat, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2009年 / 24卷 / 03期

关键词：

anodized aluminum oxide (AAO); perpendicular magnetic film; rare earth-transition metal (RE-TM); SmTbCo/AAO thin film; ARRAYS;

D O I：

10.3724/SP.J.1077.2009.00595

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A self-ordered hexagonal array of nanopore was fabricated by anodizing, a thin film of Al on glass and subsequently SmTbCo perpendicular thin film was prepared on the AAO underlayer by magnetron sputtering. The vibrating sample magnetometer (VSM) measurement reveals that introducing anodized aluminum oxide (AAO) underlayer call increase the coercivity of SmTbCo thin film from 370kA/m to 530kA/m. With the decrease of hole diameter of AAO underlayer, the coercivity and remanence squareness ratio of SmTbCo magnetic thin film are increased. SEM observations indicate that the SmTbCo thin film deposited oil the AAO underlayer consists of a column structure which IS attributed to the AAO hexagonal array of nanopore structure, The enhancement of coercivity caused by heterogeneous structure extends SmTbCo thin film's application in super high density perpendicular magnetic recording.

引用

页码：595 / 598

页数：4

共 6 条

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