【摘 要】
：
Pd/Co2MnSi (CMS)/NiFe2O4 (NFO)/Pd multilayers were fabricated on F-mica substrate by magnetron sputtering.The best PMA performance of the multilayer structure Pd(3 nm)/CMS(5 nm)/NFO(0.8 nm)/Pd(3 nm) was obtained by adjusting the thickness of the CMS and N
【机 构】
：
School of Physics and Electronics,Shandong Normal University,Ji’nan 250358,China
论文部分内容阅读
Pd/Co2MnSi (CMS)/NiFe2O4 (NFO)/Pd multilayers were fabricated on F-mica substrate by magnetron sputtering.The best PMA performance of the multilayer structure Pd(3 nm)/CMS(5 nm)/NFO(0.8 nm)/Pd(3 nm) was obtained by adjusting the thickness of the CMS and NFO layers.F-mica substrate has a flatter surface than glass and Si/SiO2 substrate.The magnetic anisotropy energy density (Keff) of the sample deposited on F-mica substrates is 0.6711 Merg/cm3 (1 erg=10-7 J),which is about 30％ higher than that of the multilayer films deposited on glass (0.475 Merg/cm3) and Si/SiO2(0.511 Merg/cm3) substrates,and the RHall and Hc are also significantly increased.In this study,the NFO layer prepared by sputtering in the high purity Ar environment was exposed to the high purity O2 atmosphere for 5 rain,which can effectively eliminate the oxygen loss and oxygen vacancy in NFO,ensuring enough Co-O orbital hybridization at the interface of CMS/NFO,and thus effectively improve the sample PMA.
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