| Cyclic Electrodeposition of Yb-Bi Thin Films |
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| 作者姓名： | 李高仁 柯琴芳 童叶翔 刘冠昆 |
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| 作者单位： | School of Chemistry and Chemical Engineering，Zhongshan University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Zhongshan University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Zhongshan University，Guangzhou 510275，China，School of Chemistry and Chemical Engineering，Zhongshan University，Guangzhou 510275，China |
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| 基金项目： | the Science Foundation of Guangdong Province，国家重点实验室基金 |
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| 摘 要： | Recently ,Bihasattractedmuchattentionforap plicationsinvolvingfieldandcurrentsensingduetoitsextremelyhighmagnetoresistance (MR )relativetothosereportedforGMRandCMRmaterials .ThelargeMRofBiarisesfromitspeculiarelectronicstructure .Ithasasmallenergyoverlap (～38meV)betweentheLconductionandTholebands ,smalleffectivemasses(atthebandedge ,me=0 0 0 2m0 ) ,andhighmobil ities .Becauseoftheseproperties ,Bihasfrequentlybeenusedforquantumconfinementstudiesinquan tumwellandquantumwiregeometries1] …
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| 关 键 词： | Yb-Bi薄膜 循环电镀 SEM XRD 稀土 DMS0 |
Cyclic Electrodeposition of Yb-Bi Thin Films |
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| Li Gaoren ,Ke Qinfang,Tong Yexiang,Liu Guankun.Cyclic Electrodeposition of Yb-Bi Thin Films[J].Journal of Rare Earths,2004,22(2):235-238. |
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| Authors: | Li Gaoren Ke Qinfang Tong Yexiang Liu Guankun |
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| Abstract: | Deposition of Yb-Bi thin films was carried out from a nonaqueous solution by using cyclic electrodepositon.During electrodeposition the substrate potential was continuously cycled between two potentials.The effects of several factors including the potential of deposition,time of deposition and sweep rate on the Yb content in the thin films and surface morphology were studied.Experimental results indicate that the amorphous Yb-Bi thin films containing Yb 21.04%～36.36%(mass fraction)can be prepared in 0.10 mol·L-1 YbCl3 0.10 mol*L-1 Bi(NO3)3 0.10 mol·L-1 LiCl DMSO by controlling deposition conditions of the system.They are black,uniform,metallic luster and adhered firmly to the copper substrates.The films were characterized by X-ray energy dispersive analysis(EDS),scanning electron microcoscope(SEM)and X-ray diffraction(XRD). |
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| Keywords: | electrochemistry Yb-Bi thin film cyclic electrodeposition dimethylsulfoxide (DMSO) amorphous rare earths |
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