Effect of Ti cap layer thickness on microstructures and magnetic properties of Ti/Ni/Ti films
来源期刊：JOURNAL OF RARE EARTHS2010年第S1期
论文作者：封顺珍 徐芹 东艳晖 马志春 刘继宏 孙会元
文章页码：406 - 408
摘 要：Nanogranular Ti（3 nm）/Ni（30 nm）/Ti（t nm ）（t=1,3,5,7,10） films were prepared by facing magnetron sputtering from Ti and Ni onto glass substrates at room temperature.The structural and magnetic properties of films strongly depended on the Ti layer thickness.X-ray diffraction（XRD） patterns of all as-deposited films showed strong FCC Ni（111） peak.Vibrating sample magnetometer（VSM） measurements indicated that the perpendicular coercivity of the Ti（3 nm）/Ni（30 nm）/Ti（3 nm） film reached about 36 kA/m.With the increase of Co layer thickness,coercivity（Hc） first increased and then decreased.The grain size and magnetic clusters slightly increased and the value of roughness（Ra） was smallest at t=3 nm.
封顺珍1，徐芹2，东艳晖1，马志春1，刘继宏1,3，孙会元2
1. College of Physics and Electric Information Engineering,Shijiazhuang University2. College of Physics Science and Information Engineering,Hebei Normal University3. Key Laboratory of Solar Activity,National Astronomical Observatories,Chinese Academemy of Sciences
摘 要：Nanogranular Ti（3 nm）/Ni（30 nm）/Ti（t nm ）（t=1,3,5,7,10） films were prepared by facing magnetron sputtering from Ti and Ni onto glass substrates at room temperature.The structural and magnetic properties of films strongly depended on the Ti layer thickness.X-ray diffraction（XRD） patterns of all as-deposited films showed strong FCC Ni（111） peak.Vibrating sample magnetometer（VSM） measurements indicated that the perpendicular coercivity of the Ti（3 nm）/Ni（30 nm）/Ti（3 nm） film reached about 36 kA/m.With the increase of Co layer thickness,coercivity（Hc） first increased and then decreased.The grain size and magnetic clusters slightly increased and the value of roughness（Ra） was smallest at t=3 nm.
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