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Co on Mo(110) studi...
Co on Mo(110) studied by scanning tunneling microscopy
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- Mikkelsen, Anders (författare)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Ouattara, Lassana (författare)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Lundgren, Edvin (författare)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Elsevier BV, 2004
- 2004
- Engelska.
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Ingår i: Surface Science. - : Elsevier BV. - 0039-6028. ; 557:1-3, s. 109-118
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We have studied the interface formation of thin films of Co on a Mo(1 1 0) surface by the use of scanning tunneling microscopy (STM), low energy electron diffraction (LEED) and auger electron spectroscopy (AES). Below a coverage of about 0.4 monolayers (ML) we find that Co grows in small islands which are pesudomorphic with the Mo substrate. At a Cc coverage above 0.4 ML, the Co atoms condense into larger islands and forms a close-packed Co layer close to that of the Co(0 0 0 1) plane resulting in a coincidence structure with the underlying Mo(1 1 0) substrate. Increasing the Co coverage. we observe that the film grows in a layer-by-layer fashion up to 2 ML at room temperature, however by annealing such a film to 670 K the Co forms 3D islands. STM images displaying atomic resolution, reveal the atomic arrangement and corrugation of the close-packed Co film formed at Co coverages above 0.4 ML at room temperature. In particular, the STM data directly demonstrate the appearance of the coincidence lattice between the Nishiyama-Wasserman orientated Co film and the Mo(1 1 0) substrate. We show how this appearance may change due to subtle changes of the registry between the Co film and the Mo(1 1 0) surface. This behavior can be explained by partial dislocations relaxing the strained close-packed Co layer by a small rigid translation. (C) 2004 Elsevier B.V. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- molybdenum
- cobalt
- Auger electron spectroscopy
- scanning tunneling microscopy
- low energy electron diffraction (LEED)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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