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研究论文

电结晶制〔Co/Pt〕_n(n≥50)超晶格的研究

  • 印仁和
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  • 上海大学化学系电化学研究室,安徽工学院,中国科学院固体物理研究所,中国科学院上海冶金研究所

收稿日期: 1997-08-28

  修回日期: 1997-08-28

  网络出版日期: 1997-08-28

Study of Co(2.5 nm)/Pt(2.5 nm) n(n ≥50) Multilayer by Electrocrystallization

  • Yin Renhe Cao Weiming Guo Yanpin Ji Huifen
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  • (The Electrochem. Rcs. Center, Shanghai Univ., Shanghai 201800) Zhou Tianjian Qin Yong (Anhui Inst. of Techn., Hefei 230069)(Inst. of Solid State Phys., Acad. Sinica, Hefe

Received date: 1997-08-28

  Revised date: 1997-08-28

  Online published: 1997-08-28

摘要

用电结晶法制取了〔Co(2.5nm)/Pt(2.5nm)〕n(n=50)超晶格.通过控制过电位以控制多层膜的生长.应用了具有高空间实分解能的反射电子显微镜法(REM)直接观察Pt(Ⅲ)面上的原子台阶以及在Pt(Ⅲ)上的Co的生长方式,发现在高过电位E=-1.15V(vs.Hg/Hg2SO4)下Co以三维生长方式成膜.用小角度X射线衍射法证实在Pt(Ⅲ)面上确实形成了人工超晶格,其周期d=5nm.

本文引用格式

印仁和 . 电结晶制〔Co/Pt〕_n(n≥50)超晶格的研究[J]. 电化学, 1997 , 3(3) : 252 -257 . DOI: 10.61558/2993-074X.3121

Abstract

The electrocrystallization of Co(2.5 nm)/Pt(2.5 nm) n (n ≥50) multilayer has been carried out under potential control, based on observation of reflection electron microscopy (REM). Monatomic steps on Pt single crystal surfaces have been imaged using a conventional transmission electron microscope in the reflection made. The REM images have revealed three dimintional growth of Co electrocrystallization at high polarization of -1.15 V (vs.Hg/Hg 2SO 4). The structure of the specimen was examined by small or high angle X ray diffration technique. The modulation period of a multilayered structure is 5.0 nm.

参考文献

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