A misfit structure in the Co/Pt(111) system studied by scanning tunnelling microscopy and embedded atom method calculations
(2002) In Surface Science 498(3). p.257-265- Abstract
- We have performed scanning tunnelling microscopy (STM) measurements of thin films of Co and CoPt alloys on Pt(111). In contrast to the interpretation of an earlier low energy electron diffraction investigation by Tsay and Shern [Surf. Sci. 396 (1998) 313] we find that the structure observed upon annealing a Pt(111) sample with a 2 ML (monolayer, ML) thick film of Co does not consist of a rotated Co film but rather of a CoPt alloy film with hexagonal areas of fee stacking, single and double stacking faults, delimited by misfit dislocations (Shockley partial dislocations). Comparison of STM images with embedded atom method calculations confirms our model. The structure at the Pt-PtCo interface in our model is similar to that proposed by... (More)
- We have performed scanning tunnelling microscopy (STM) measurements of thin films of Co and CoPt alloys on Pt(111). In contrast to the interpretation of an earlier low energy electron diffraction investigation by Tsay and Shern [Surf. Sci. 396 (1998) 313] we find that the structure observed upon annealing a Pt(111) sample with a 2 ML (monolayer, ML) thick film of Co does not consist of a rotated Co film but rather of a CoPt alloy film with hexagonal areas of fee stacking, single and double stacking faults, delimited by misfit dislocations (Shockley partial dislocations). Comparison of STM images with embedded atom method calculations confirms our model. The structure at the Pt-PtCo interface in our model is similar to that proposed by Henzler [Surf. Sci. 419 (1999) 321]. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/342709
- author
- Lundgren, Edvin LU ; Leonardelli, G ; Schmid, M and Varga, P
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- semi-empirical models and model calculations, scanning tunneling microscopy, cobalt, platinum, growth, epitaxy, metal-metal magnetic thin, film structures, low energy electron diffraction (LEED)
- in
- Surface Science
- volume
- 498
- issue
- 3
- pages
- 257 - 265
- publisher
- Elsevier
- external identifiers
-
- wos:000174044700007
- scopus:0037138497
- ISSN
- 0039-6028
- DOI
- 10.1016/S0039-6028(01)01754-X
- language
- English
- LU publication?
- yes
- id
- 3dd42ccf-c0fd-4889-942c-85d30e941c81 (old id 342709)
- date added to LUP
- 2016-04-01 15:31:32
- date last changed
- 2022-01-28 05:48:59
@article{3dd42ccf-c0fd-4889-942c-85d30e941c81, abstract = {{We have performed scanning tunnelling microscopy (STM) measurements of thin films of Co and CoPt alloys on Pt(111). In contrast to the interpretation of an earlier low energy electron diffraction investigation by Tsay and Shern [Surf. Sci. 396 (1998) 313] we find that the structure observed upon annealing a Pt(111) sample with a 2 ML (monolayer, ML) thick film of Co does not consist of a rotated Co film but rather of a CoPt alloy film with hexagonal areas of fee stacking, single and double stacking faults, delimited by misfit dislocations (Shockley partial dislocations). Comparison of STM images with embedded atom method calculations confirms our model. The structure at the Pt-PtCo interface in our model is similar to that proposed by Henzler [Surf. Sci. 419 (1999) 321].}}, author = {{Lundgren, Edvin and Leonardelli, G and Schmid, M and Varga, P}}, issn = {{0039-6028}}, keywords = {{semi-empirical models and model calculations; scanning tunneling microscopy; cobalt; platinum; growth; epitaxy; metal-metal magnetic thin; film structures; low energy electron diffraction (LEED)}}, language = {{eng}}, number = {{3}}, pages = {{257--265}}, publisher = {{Elsevier}}, series = {{Surface Science}}, title = {{A misfit structure in the Co/Pt(111) system studied by scanning tunnelling microscopy and embedded atom method calculations}}, url = {{http://dx.doi.org/10.1016/S0039-6028(01)01754-X}}, doi = {{10.1016/S0039-6028(01)01754-X}}, volume = {{498}}, year = {{2002}}, }