Magnetic properties of soft layer/FePt-MgO exchange coupled composite perpendicular recording media

作     者：阴津华 Takao Suzuki 潘礼庆 

作者机构：Department of Physics University of Science and Technology Beijing Information Storage Materials Laboratory Toyota Technological Institute 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2008年第17卷第10期

页      面：3907-3909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：Project supported by the Japanese Storage Research Consortium (SRC) the Grant-in-Aid for Scientific Research (A) of the Japanese Ministry of Education, Culture, Sports, Science and Technology (Grant No 14205049) 

主　　题：exchange coupled composite media perpendicular magnetic recording media magnetic properties 

摘      要：The magnetic properties of exchange coupled composite （ECC） media that are composed of perpendicular magnetic recording media FePt MgO and two kinds of soft layers have been studied by using an x-ray diffractometer, a polar Kerr magneto-optical system （PMOKE） and a vibrating sample magnetometer （VSM）. The results show that ECC media can reduce the coercivities of perpendicular magnetic recording media FePt-MgO. The ECC media with granular-type soft layers have weaker exchange couplings between magnetic grains and the magnetization process, for ECC media of this kind mainly follow the Stoner Wohlfarth model.