Effects of Ag Layer on the Structure and Magnetic Properties of FePt:AlN Composite Films

Wenfeng Liu , Yuesheng Chai, Gang Sun and Mingang Zhang College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China

摘 要：[AlN/FePt] 10 , [AlN/FePt] 10 /Ag and Ag/[AlN/FePt] 10 thin films were deposited by magnetron sputtering onto 7059 glass substrates, then were annealed at 550 °C for 30 min. It is found that introducing non-magnetic Ag underlayer can improve the ordering and （001） preferred orientation of FePt grains. Furthermore, the （001） texture of FePt grains increases with increasing Ag underlayer thickness. However, with Ag top layer given, it can only be observed that the ordering of FePt grains was promoted.

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