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电化学(中英文) ›› 1997, Vol. 3 ›› Issue (3): 252-257. 

• 研究论文 • 上一篇    下一篇

电结晶制〔Co/Pt〕_n(n≥50)超晶格的研究

印仁和,曹为民,郭也平,计慧芬,周天键,秦勇,王葛亚   

  1. 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 出版日期:1997-08-28 发布日期: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   

  1. (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:1997-08-28 Revised:1997-08-28 Published:1997-08-28 Online: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.

关键词: 电结晶, 〔Co/Pt〕n超晶格, REM, X射线衍射

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.

Key words: Electrocrystallization, Co/Pt n multilayer, REM, X ray diffration

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