以硫酸溶液为电解质,采用两步电化学阳极氧化法制备了氧化铝有序多孔膜,孔径为20nm,孔间距为50nm左右,孔洞密度为4.5×1010个/cm2.以此多孔膜为模板,以脉冲信号为沉积电压制备了金属Ni纳米线阵列,单根纳米线直径为15～20nm,择优取向为Ni(220)晶面.磁滞回线结果表明垂直于膜面的方向为易磁化方向,当磁场垂直于膜面时,矩形比高达90.5%,矫顽力为63.84kA/m.
参考文献
| [1] | Huang Y;Duan X F;Lieber C M et al.[J].Science,2001,291:630-633. |
| [2] | Chakarvarti SK.;Vetter J. .Template synthesis - A membrane based technology for generation of nano-/micro materials: A review[J].Radiation measurements,1998(2):149-159. |
| [3] | Messer B.;Yang PD.;Song JH. .Microchannel networks for nanowire patterning[J].Journal of the American Chemical Society,2000(41):10232-10233. |
| [4] | Chipara MI.;Skomski R.;Sellmyer DJ. .Magnetic modes in Ni nanowires[J].Journal of Magnetism and Magnetic Materials,2002(1/2):246-250. |
| [5] | 李发伸,任立元,牛紫平,王海新,王涛.α-铁纳米线阵列的磁矩分布[J].中国科学B辑,2002(05):420-424. |
| [6] | 铁晨阳,包建春,徐正.制备条件对金属纳米线阵列磁性的影响[J].材料研究学报,2002(05):463-468. |
| [7] | 姚素薇,迟广俊,崔兰,范君,张卫国,王宏智.模板组装Fe纳米线阵列及其微结构[J].物理化学学报,2002(10):930-933. |
| [8] | 于冬亮,杨绍光,朱浩,都有为.钴纳米线阵列的制备和磁性[J].南京工业大学学报(自然科学版),2000(06):69-71. |
| [9] | Keller F;Hunter M S;Robinson D L .[J].Journal of the Electrochemical Society,1953,100:411-419. |
| [10] | Nielseh K;Choi J;Schwirn K .[J].NANO LETTERS,2002,2:677-680. |
| [11] | Jessensky O.;Gosele U.;Muller F. .Self-organized formation of hexagonal pore arrays in anodic alumina[J].Applied physics letters,1998(10):1173-1175. |
| [12] | Larson A C;Von Dreele R B .General Structure Analysis System(GSAS)[Los Alamos National Laboratory Report LAUR 86-748][R].,2000. |
| [13] | Toby BH. .EXPGUI, a graphical user interface for GSAS[J].Journal of Applied Crystallography,2001(2):210-213. |
| [14] | 倪玉华,马礼敦,沈孝良,施国顺.Rietveld全谱拟合表征掺杂ZnO陶瓷[J].高等学校化学学报,2000(05):785-788. |
| [15] | 肖君军,孙超,薛德胜,李发伸.铁纳米线磁行为的微磁学模拟与研究[J].物理学报,2001(08):1605-1609. |
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