Effects of Ag layers on the microstructure and magnetic properties of CoPt/BN multilayer films  

作　　者：Lu Baohua WANG Fang 

机构地区：[1]Department of Applied Chemistry, Yuncheng University, Yuncheng 044000, China [2]School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, China

出　　处：《Rare Metals》2011年第2期137-141,共5页稀有金属（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.10574085);the Scientific Research of Yuncheng University,China (No.2009007)

摘　　要：Ag/[BN/CoPt]5/Ag and [BN/Ag/CoPt]5/Ag thin films were deposited on glass substrates by magnetron sputtering and then annealed in vac- uum at 600 ℃ for 30 min. The structures and magnetic properties of CoPt/BN multilayer films were investigated as a function of Ag layer thickness. It was found that the face-centered tetragonal （fct） （001） texture of CoPt was improved greatly by introducing the Ag toplayer or sublayer together with an Ag underlayer. Good （001）-oriented growth, low intergrain interactions as well as high perpendicular anisotropy can be obtained in the Ag（3 nm）/[BN（2.5 nm）/CoPt（3 nm）]5/Ag（7 nm） and [BN（2.5 nm）/Ag（2 nm）/CoPt（3 nm）]5/Ag（10 nm） films, which become potential candidates for ultrahigh density magnetic recording media.Ag/[BN/CoPt]5/Ag and [BN/Ag/CoPt]5/Ag thin films were deposited on glass substrates by magnetron sputtering and then annealed in vac- uum at 600 ℃ for 30 min. The structures and magnetic properties of CoPt/BN multilayer films were investigated as a function of Ag layer thickness. It was found that the face-centered tetragonal （fct） （001） texture of CoPt was improved greatly by introducing the Ag toplayer or sublayer together with an Ag underlayer. Good （001）-oriented growth, low intergrain interactions as well as high perpendicular anisotropy can be obtained in the Ag（3 nm）/[BN（2.5 nm）/CoPt（3 nm）]5/Ag（7 nm） and [BN（2.5 nm）/Ag（2 nm）/CoPt（3 nm）]5/Ag（10 nm） films, which become potential candidates for ultrahigh density magnetic recording media.

关 键 词：magnetic thin films MULTILAYERS magnetic recording magnetron sputtering silver MICROSTRUCTURE magnetic properties 

分 类 号：O484.1[理学—固体物理] G322.25[理学—物理]