Fabrication of magnetic metal-organic nano granular films using metal-organic co-electrodeposition method

采用一种新的电化学方法--“金属-有机共电沉积法”制备了金属-有机颗粒膜。即磁性金属和有机薄膜的同时沉积。采用电化学石英晶体微天平(EQCM)方法对商品电沉积镀液中有机薄膜的沉积情况进行了监测。结果表明，有机沉积层的沉积受基质附近pH值的影响，为获得金属-有机复合材料，开发了电沉积镀液。使用含有水溶性树脂和CoSO4的溶液。在不搅拌的情况下，使用恒电位器在ITO衬底上进行恒电位沉积。制备了金属-有机复合膜。另一方面，电沉积的L1_0结构的Co-Pt薄膜在973K后退火后获得了高达880kA/m的矫顽力。

Metal-organic granular films were synthesized by a newly developed electrochemical method called the "metal-organic co-electrodeposition method". i.e.the simultaneous deposition of magnetic metal and organic film. Organic film was deposited The deposition situation of the organic film from a commercial electrodeposition coating solution was monitored by the electrochemical quartz crystal microbalance (EQCM) method. It was clear that the organic deposition were affected of the pH value near the substrate.To obtain metal-organic composite, electrodeposition bath was developed. The solution containing water-soluble resin and CoSO_4 were used. Electrodeposition was conducted potentiostatically using a potentiostat on the ITO substrate without stirring. Metal-organic composite films were fabricated. These films showed ferromagnetic property and high elector resistance.On the other hand, Electrodeposited Co-Pt films with L1_0 structure had a high coercivity value of 880 kA/m after a post-annealing at 973 K.