利用磁控溅射方法,在加热的单晶MgO(100)基片上制备了以AlN为母体的FePt薄膜,再经过真空热处理后,得到了具有垂直磁各向异性且无磁交换耦合作用的FePt薄膜;同时,研究了掺杂AlN含量、薄膜的厚度及退火温度对薄膜的磁性能的影响.结果表明,非磁性相AlN的添加能够降低磁交换耦合作用,但同时也会破坏薄膜的垂直磁各向异性.降低薄膜厚度,有利于改善薄膜的垂直磁各向异性,FePt-AlN薄膜的厚度为6nm且掺杂AlN含量达到40%时,经650℃热处理1h后薄膜具有良好垂直磁各向异性、适中矫顽力且无磁交换耦合作用.
参考文献
| [1] | Weller D.;Folks L.;Best ME.;Lee W.;Toney MF.;Schwickert M. Thiele JU.;Doerner MF.;Moser A. .High K-u materials approach to 100 Gbits/in(2)[J].IEEE Transactions on Magnetics,2000(1 Pt.1):10-15. |
| [2] | Yan M L;Sabirianov R F;Xu Y F et al.[J].IEEE Transactions on Magnetics,2004,40:2470-2472. |
| [3] | Daniil M.;Farber PA.;Okumura H.;Hadjipanayis GC.;Weller D. .FePt/BN granular films for high-density recording media[J].Journal of Magnetism and Magnetic Materials,2002(1/2):297-302. |
| [4] | Li B H;Feng C;Gao X et al.[J].Applied Physics Letters,2007,91:152502. |
| [5] | Li B H;Feng C;Yang T et al.[J].Journal of Applied Physics,2006,99:016102. |
| [6] | Chen SC.;Lie CT.;Hua JT.;Kuo PC. .Microstructure and coercivity of granular FePt-AlN thin films[J].Journal of Magnetism and Magnetic Materials,2001(1/2):151-157. |
| [7] | Xu XH;Li XL;Wu HS .Microstructure and magnetic properties of [FePt/AlN](n) multilayers deposited by RF magnetron sputtering[J].Physica, B. Condensed Matter,2004(1/4):48-52. |
| [8] | Okamoto S;Kitakami O;Shimada Y .[J].Materials Transactions,2006,47:43-46. |
| [9] | Xu Y F;Chen J S;Wang J P .[J].Applied Physics Letters,2002,80:3325-3327. |
| [10] | Chen J S;Lim B C;Wang J P .[J].Appl Phya Lett,2002,81:1848-1850. |
| [11] | Suzuki T;Harada K;Honda N et al.[J].Journal of Magnetism and Magnetic Materials,1999,193:85-88. |
| [12] | Kang K;Zhang Z G;Papusoi C et al.[J].Applied Physics Letters,2004,84:404-406. |
| [13] | Shima T;Takanashi K;Takahashi Y K et al.[J].Applied Physics Letters,2002,81:1050-1052. |
| [14] | Lim B C;Chen J S;Wang J P .[J].Journal of Magnetism and Magnetic Materials,2004,271:431-436. |
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