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Comparison of pulsed laser deposition and thermal deposition: Improved layer‐by‐layer growth of Fe/Cu(111)

 

作者: H. Jenniches,   M. Klaua,   H. Ho¨che,   J. Kirschner,  

 

期刊: Applied Physics Letters  (AIP Available online 1996)
卷期: Volume 69, issue 22  

页码: 3339-3341

 

ISSN:0003-6951

 

年代: 1996

 

DOI:10.1063/1.117299

 

出版商: AIP

 

数据来源: AIP

 

摘要:

In the search for a correlation between the magnetism and the microstructure of ultrathin films, straightforward layer‐by‐layer growth is desirable. The thermal deposition of Fe onto Cu(111), however, does not result in this growth mode. In this letter, we compare the initial growth of Fe on Cu(111) prepared by pulsed laser deposition (PLD) with thermally deposited Fe/Cu(111) using scanning tunneling microscopy (STM). In PLD, from the beginning there is two‐dimensional nucleation and growth, in contrast to the initial bilayer nucleation and growth found for thermal deposition. Therefore, it is shown by STM that PLD grown films exhibit greatly improved layer‐by‐layer growth. The different experimental results are interpreted in terms of the very high deposition rate during PLD. ©1996 American Institute of Physics.

 

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