用循环伏安法在单晶Cu(110)上沉积了亚稳态fcc相的Co磁性薄膜,并用法拉第定律估算了薄膜的厚度约为17 nm.X射线衍射结果表明薄膜具有(100)的单一取向结构,而用同样方法沉积在多晶Pt片上的Co薄膜则是六方多晶结构.用扫描电子显微镜、X射线以及同步辐射光电子能谱对薄膜的表面形貌、组成以及元素的化学态进行了表征,结果表明循环伏安法制备的薄膜平整连续,Co薄膜没有明显的氧化现象;磁性测量结果表明外延生长的薄膜具有典型的软磁特征,矫顽力约为100 Oe,剩磁比约0.86.软X射线磁性圆二色实验结果计算得到Co薄膜的自旋磁矩和轨道磁矩非常接近于Co体相材料的数据.
参考文献
| [1] | 李国栋.2004-2005年金属磁性功能材料研究新进展[J].金属功能材料,2006(04):32-35. |
| [2] | 李明华,于广华,朱逢吾,何珂,赖武彦.NiFe/非磁金属隔离层/FeMn薄膜中的微结构及其对交换耦合的影响[J].中国科学E辑,2003(11):961-968. |
| [3] | Wastlbauer G;Bland JAC .Structural and magnetic properties of ultrathin epitaxial Fe films on GaAs(001) and related semiconductor substrates[J].Advances in physics,2005(2):137-219. |
| [4] | Sharma A;Tripathi S;Brajpuriya R;Chaudhari SM .Investigation of annealing effects on the structural, magnetic and transport properties of Co/GaAs(001) thin films[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(24):8571-8575. |
| [5] | Calarco R et al.[J].Physical Status Solidi A Applied Research,2005,202(05):754. |
| [6] | Schindler W et al.[J].Physical Review B:Condensed Matter,1997,55(04):R1989. |
| [7] | Vollmer R et al.[J].Physical Review Letters,2003,91(14):147201. |
| [8] | Zhao H W et al.[J].Journal of Applied Physics,2004,95(11):7300. |
| [9] | Kamiko M;Chihaya H;Sugimoto W;Yamamoto R;Oh S;Xu JH;Kojima I .Effect of Bi surfactant in the heteroepitaxial growth of Co on Cu surfaces[J].Surface review and letters,2006(2/3):201-207. |
| [10] | Munford M L et al.[J].Journal of the Electrochemical Society,2002,14(05):C274-C279. |
| [11] | Harp G.R et al.[J].Physical Review B:Condensed Matter,1993,48(23):48. |
| [12] | Wuttig M;Liu X.Ultrathin Metal films:Magnetic and Strutural Properties[M].Springer-Verlag,2004:125. |
| [13] | Cerisier M.;Celis JP.;Van Haesendonck C.;Attenborough K. .Structure and magnetic properties of electrodeposited Co films onto Si(100)[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2000(1/4):154-159. |
| [14] | Gomez E.;Valles E. .Thick cobalt coatings obtained by electrodeposition[J].Journal of Applied Electrochemistry,2002(6):693-700. |
| [15] | Wierenga H A et al.[J].Physical Review Letters,1995,74(08):1462. |
| [16] | Samant M G et al.[J].Physical Review Letters,1994,72(07):1112. |
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%