采用射频磁控溅射法在玻璃基片上制备了NdTbCo/Cr非晶垂直磁化膜.探讨了溅射功率与溅射时间对薄膜磁性能的影响,发现当溅射功率为250 W,溅射时间为4 min时,垂直膜面方向矫顽力为272.8 kA·m-1,剩磁矩形比达到0.801,可以较好地满足高密度垂直磁记录的要求.研究了 Nd掺杂对薄膜磁性能与磁光性能的影响,发现随着Nd掺杂量的增多,薄膜的矫顽力从413.8下降为210.9 kA·m-1,饱和磁化强度与克尔旋转角则分别从144 kA·m-1和0.2720°上升为252 kA·m-1和0.3258°.温度对NdTbCo/Cr薄膜克尔旋转角的影响也与Nd的掺杂量密切相关.
参考文献
| [1] | Li Z Y;Cheng X M;Lin G Q.Temperature dependence of LRE-HRE-TM thin films[A].Washington:The International Society for Optical Engineering,2002:89. |
| [2] | 李佐宜,黄致新,林更琪,晋芳,李震.Effects of Sm Substitution on Magnetic and Magneto-Optical Properties of TbCo/Cr Films[J].中国物理快报(英文版),2003(06):909-911. |
| [3] | 黄致新,李佐宜,但旭,晋芳,李震,林更琪.TbCo/Cr Amorphous Film with Perpendicular Magneto-Anisotropy[J].稀土学报(英文版),2004(04):489-491. |
| [4] | Honda S;Ohkoshi M;Kusuda T .Change of magnetic properties in compositionally modulated TbCo sputtered films[J].IEEE Transactions on Magnetics,1986,22(05):1221. |
| [5] | Ohkoshi M;Harada M;Tokunaga T et al.Effects of Ar pressure bias on magnetic and microstructure in amorphous TbCo sputtered films[J].IEEE Transactions on Magnetics,1985,21(05):1635. |
| [6] | 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. |
| [7] | Jin F;Li Z Y;Huang Z X et al.Magneto-optical and magnetic properties of DySmCo/Cr thin films[J].Transactions of the Mycological Society of Japan,2004,4(4-2):208. |
| [8] | 杨峰;张晓卫;张鹰 .溅射功率对TbFeCo磁光薄膜特性的影响[J].真空电子技术,1997,6:43. |
| [9] | 宛德福;马兴隆.磁性物理[M].成都:电子科技大学出版社,1994:259. |
| [10] | Sayama J;Mizutani K;Asahi T;Osaka T .Thin films of SmCo5 with very high perpendicular magnetic anisotropy[J].Applied physics letters,2004(23):5640-5642. |
| [11] | Tsunashima S. .Magneto-optical recording [Review][J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2001(17):R87-R102. |
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%