Co on Mo(110) studied by scanning tunneling microscopy
(2004) In Surface Science 557(1-3). p.109-118- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/277155
- author
- Mikkelsen, Anders LU ; Ouattara, Lassana LU and Lundgren, Edvin LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- molybdenum, cobalt, Auger electron spectroscopy, scanning tunneling microscopy, low energy electron diffraction (LEED)
- in
- Surface Science
- volume
- 557
- issue
- 1-3
- pages
- 109 - 118
- publisher
- Elsevier
- external identifiers
-
- wos:000221511700015
- scopus:2342570926
- ISSN
- 0039-6028
- DOI
- 10.1016/j.susc.2004.03.020
- language
- English
- LU publication?
- yes
- id
- 9ca4ff6c-9293-4d92-9c46-9fc695b3b8f5 (old id 277155)
- date added to LUP
- 2016-04-01 16:01:05
- date last changed
- 2022-03-30 04:54:46
@article{9ca4ff6c-9293-4d92-9c46-9fc695b3b8f5,
abstract = {{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.}},
author = {{Mikkelsen, Anders and Ouattara, Lassana and Lundgren, Edvin}},
issn = {{0039-6028}},
keywords = {{molybdenum; cobalt; Auger electron spectroscopy; scanning tunneling microscopy; low energy electron diffraction (LEED)}},
language = {{eng}},
number = {{1-3}},
pages = {{109--118}},
publisher = {{Elsevier}},
series = {{Surface Science}},
title = {{Co on Mo(110) studied by scanning tunneling microscopy}},
url = {{http://dx.doi.org/10.1016/j.susc.2004.03.020}},
doi = {{10.1016/j.susc.2004.03.020}},
volume = {{557}},
year = {{2004}},
}