Magnetic fields parallel to the electrodes were introduced during a pulse plating process to obtain cobalt thin films from alkaline baths. Effects of different magnetic intensities on the composition, microstructure, and magnetic properties of cobalt thin films were investigated. It was found that the deposition speed increased gradually with the increase of magnetic intensity. Almost all of the deposited films were crystalline and showed Co(002), Co(100) peaks. With the rise on the magnetic intensity, the intensity of Co (002) peak raised gradually. Magnetic fields would induce cobalt growing along (002) orientation. The films were densely covered with typical nodular structure. Films of smaller grain size and smooth surface could be formed under high magnetic intensity (1 T) as a result of magnetic force and MHD effects. Moreover, higher magnetic intensity induced larger saturation magnetization and lower coercivity. With the rise on magnetic intensity, cobalt contents in the films increased gradually, which led to the rise of saturation magnetization.
参考文献
| [1] | Sverdlov Y;Bogush V;Einati H;Shacham-Diamand Y .Electrochemical study of the electroless deposition of Co(W, B) alloys[J].Journal of the Electrochemical Society,2005(9):C631-C638. |
| [2] | Wei G.Y;Jin Y.B;Yu Y.D;Ge H.L Wang X.Y Jiang L and Sun L.X .Electroless deposition of CoPtWP magnetic thin films[J].Thin Solid Films,2010,519(04):1259. |
| [3] | Yu, YD;Wei, GY;Ge, HL;Gao, Y;Zhao, Z;Jiang, L .PREPARATION OF Co-W-P MAGNETIC THIN FILMS BY ELECTROLESS DEPOSITION[J].Surface review and letters,2009(4):635-642. |
| [4] | Jakub Adam Koza;Franziska Kambach;Margitta Uhlemann;Jeffrey McCord;Christine Mickel;Annett Gebert;Stefan Baunack;Ludwig Schultz .Electrocrystallisation of CoFe alloys under the influence of external homogeneous magnetic fields-Properties of deposited thin films[J].Electrochimica Acta,2010(3):819-831. |
| [5] | Ralph Sueptitz;K. Tschulik;M. Uhlemann;A. Gebert;L. Schultz .Impact of magnetic field gradients on the free corrosion of iron[J].Electrochimica Acta,2010(18):5200-5203. |
| [6] | Hisayoshi Matsushima;Andreas Bund;Waldfried Plieth;Shiomi Kikuchi;Yasuhiro Fukunaka .Copper electrodeposition in a magnetic field[J].Electrochimica Acta,2007(1):161-166. |
| [7] | Matsushima H.;Nohira T.;Mogi I.;Ito Y. .Effects of magnetic fields on iron electrodeposition[J].Surface & Coatings Technology,2004(2/3):245-251. |
| [8] | Fahidy T .Approaches to study of electrochemical process instability:a review[J].Rus J Electrochem,2006,42(05):506. |
| [9] | Fahidy T .An application of Bayesian risk theory to electrochemical processes[J].Electrochimica Acta,2004,49(09):1397. |
| [10] | A. Ispas;H. Matsushima;W. Plieth;A. Bund .Influence of a magnetic field on the electrodeposition of nickel-iron alloys[J].Electrochimica Acta,2007(8):2785-2795. |
| [11] | 葛世慧,黎超,马骁,李伟,李成贤.外加磁场对Co纳米线生长过程的影响[J].物理学报,2001(01):149-152. |
| [12] | Yu, YD;Wei, GY;Hu, XK;Ge, HL;Yu, Z .The effect of magnetic fields on the electroless deposition of Co-W-P film[J].Surface & Coatings Technology,2010(16/17):2669-2676. |
| [13] | A. Krause;C. Hamann;M. Uhlemann .Influence of a magnetic field on the morphology of electrodeposited cobalt[J].Journal of Magnetism and Magnetic Materials,2005(1):261-264. |
| [14] | Coey J.M.D;Hinds G .M agnetic electrodeposition[J].Journal of Alloys and Compounds,2001,326(01):238. |
| [15] | Y. D. Yu;Z. Yu;W. Li .Preparation of Co-W-P alloy films by pulse plating[J].Surface Engineering,2011(9):671-675. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%