在SPF-430H溅射系统上采用不加偏压的射频磁控溅射法制备了TbCo非晶垂直磁化膜,并就Cr底层对TbCo非晶垂直磁化膜磁性能的影响进行了研究.结果表明,Cr底层的存在能够增强TbCo非晶垂直磁化膜的磁各向异性,并使得其矫顽力增加.分别采用VTBH-1型高感度振动样品磁强计和MTL-1磁转矩系统测量了TbCo薄膜的磁滞回线和磁转矩曲线.结果发现,厚度为120 nm,并带有180 nm厚度Cr底层的Tb31C69薄膜的矫顽力和磁各向异性能分别高达51.2×104 A/m和0.457 J/cm3;没有带Cr底层的同样厚度的Tb31C69薄膜的矫顽力和磁各向异性能分别只有35.2×104 A/m和0.324 J/cm3.Hitachi X-650型扫描电镜的观测结果表明,带有Cr底层的TbCo薄膜具有柱状结构,这一柱状结构导致了磁各向异性能的增强以及矫顽力的提高.
参考文献
| [1] | 李佐宜;缪向水;朱平 et al.The Properties of RE-TM Magneto-Optical Films[J].Journal of Magnetism and Magnetic Materials,1992,115:44. |
| [2] | Ruigrok JJM.;Cumpson SR.;Kesteren HW.;Coehoorn R. .Disk recording beyond 100 Gb/in.(2): Hybrid recording? (invited)[J].Journal of Applied Physics,2000(9 Pt.2):5398-5403. |
| [3] | 黄致新,李佐宜,晋芳,程晓敏,许小红,李震,王鲜然,林更琪.Effect of a Cr Underlayer on the Magnetic Properties of TbCo Amorphous Films with Perpendicular Anisotropy[J].中国物理快报(英文版),2002(10):1531-1533. |
| [4] | Laughlin D.E.;Wong B.Y. .The crystallography and texture of Co-based thin film deposited on Cr underlayers[J].IEEE Transactions on Magnetics,1991(6):4713-4717. |
| [5] | 许小红,武海顺,张富强,张聪杰,李佐宜.反应溅射制备AlN薄膜中沉积速率的研究[J].稀有金属材料与工程,2002(03):209-212. |
| [6] | Hellman F;Grogry E M .Groth-Induced Magnetic Anisotropy in Amorphous Tb-Fe[J].Physical Review Letters,1992,68(09):1391. |
| [7] | Okumura Y.;Fujimori H. .Magnetic properties and microstructure of sputtered CoSm/X (X=Ti, V, Cu and Cr) thin films[J].IEEE Transactions on Magnetics,1994(6):4038-4040. |
| [8] | Davai J;Bechevet B .Rare Earth Transition Metal Alloys for Magneto-Optical Recording[J].Journal of Magnetism and Magnetic Materials,1994,129:98. |
| [9] | Yan X;Hirscher M;Egami T et al.Direct Observation of Anelastic Bond-Orientational Anisotropy in Amorphous Tb26Fe62Col2 Thin Films by X-Ray Diffraction[J].Physical Review B,1991,43(09):300. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%