Magnetic property and recording performance of chemical deposition CoP thin films

作     者：Wang, Haicheng Zhou, Qunfei Teng, Jiao Wang, Lijin Yu, Guanghua 

作者机构：Department of Material Physics and Chemistry University of Science and Technology Beijing Beijing 100083 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2012年第31卷第3期

页      面：260-263页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China (No. 51101013) Specialized Research Fund for the Doctoral Program of Higher Education of China(No. 20090006120013) the Fundamental Research Funds for the Central Universities (FRF-TP-12-038A) 

主　　题：CoP thin films magnetic property magnetic recording 

摘      要：The thickness of CoP thin films prepared by wet chemical deposition is of crucial importance on magnetic property and recording perform-ance. The coercivity of CoP films decreased with increasing film thickness. The coercivity was 45.37 kA m 1 at the thickness of 300 nm, and decreased to 21.65 kA m 1 at 5.7 μm. Recording performance tests indicate that, for drums with the same size, different recorded magnetic pole density have different thickness requirements. For 40 mm diameter magnetic drum, the optimal CoP thickness is 3～10 μm for 256 re-corded magnetic poles, 1～2 μm for 512 recorded magnetic poles, and 500～800 nm for 1024 recorded magnetic poles.