采用磁控溅射方法在自然氧化的单晶Si(100)衬底上制备了纳米结构的Fex Pt100-x(x=30at%～60at%)薄膜.高温XRD分析表明,薄膜在500℃热处理有明显的面心立方FCC结构向面心四方FCT结构转变. 通过VSM、AFM对薄膜样品的磁性检测和晶粒尺度的观察,FePt合金薄膜有序化转变的最佳热处理温度在400～500℃,在这个热处理温度范围内,薄膜软硬磁耦合较好,矫顽力适当(306kA/m),晶粒尺寸约为10nm,适合于做高密度磁记录介质材料.
参考文献
| [1] | Farrow R F F;Weller D;Marks R F .Magnetic anisotropy and microstructure in moleculer beam epitaxial FePt(110)/MgO(110)[J].Journal of Applied Physics,1998,84(02):934-939. |
| [2] | S.H.Whang;Q.Feng;Y._Q.Gao .Ordering, deformation and microstructure in L1_0 type FePt[J].Acta materialia,1998(18):6485-6495. |
| [3] | G. A. Held;G. Grinstein .Quantum limit of magnetic recording density[J].Applied physics letters,2001(10):1501-1503. |
| [4] | (001) oriented FePt-Ag composite nanogranular films on amorphous substrate[J].Applied Physics Letters,2003(19):3284-3286. |
| [5] | Luo CP.;Sellmyer DJ.;Liou SH. .FePt : SiO2 granular thin film for high density magnetic recording[J].Journal of Applied Physics,2000(9 Pt.3):6941-6943. |
| [6] | Kuo PC.;Kuo CM.;Wu HC.;Yao YD. .Microstructure and magnetic properties of the (FePt)(100-x)Cr-x thin films[J].Journal of Applied Physics,2000(9 Pt.3):6146-6148. |
| [7] | Seong-Rae Lee;Sanghyun Yang;Young Keun Kim;Jong Gab Na .Rapid ordering of Zr-doped FePt alloy films[J].Applied physics letters,2001(25):4001-4003. |
| [8] | Luo CP.;Gao L.;Liu Y.;Sellmyer DJ.;Liou SH. .Nanostructured FePt : B2O3 thin films with perpendicular magnetic anisotropy[J].Applied physics letters,2000(14):2225-2227. |
| [9] | Mu-Gyeom Kim;Sung-Chul Shin .Temperature dependence of growth morphology of sputtered (FePt/Pt) films on MgO (100) substrate[J].Journal of Applied Physics,2001(5):2211-2215. |
| [10] | 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. |
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