This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1063/1.2717127 in citations.
Please use the identifier: http://hdl.handle.net/2128/17134 in citations.
Thermal stability of Co-core-CoO-shell nanoparticles on an ultrathin theta-Al2O3 film support
Thermal stability of Co-core-CoO-shell nanoparticles on an ultrathin theta-Al2O3 film support
The effect of annealing temperature on a system of Co-core-CoO-shell nanoparticles on theta-Al2O3/CoAl(100) has been investigated using a combination of Auger electron spectroscopy, high-resolution electron energy loss spectroscopy, low-energy electron diffraction, and scanning tunneling microscopy....
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Personal Name(s): | Rose, V. |
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Franchy, R. | |
Contributing Institute: |
Grenz- und Oberflächen; IBN-3 JARA-FIT; JARA-FIT Center of Nanoelectronic Systems for Information Technology; CNI |
Published in: | Journal of applied physics, 101 (2007) S. 086104 |
Imprint: |
Melville, NY
American Institute of Physics
2007
|
Physical Description: |
086104 |
DOI: |
10.1063/1.2717127 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Journal of Applied Physics
101 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/17134 in citations.
The effect of annealing temperature on a system of Co-core-CoO-shell nanoparticles on theta-Al2O3/CoAl(100) has been investigated using a combination of Auger electron spectroscopy, high-resolution electron energy loss spectroscopy, low-energy electron diffraction, and scanning tunneling microscopy. Results show that thermal treatment leads to a decomposition of the CoO-shell above 450 K, and thus it is strongly diminished with respect to the bulk value. Between 550 and 1050 K the Co particles coalescence and diffuse through the oxide into the substrate. Due to defect recovery, the thermal stability of the thin aluminum oxide film remained unchanged compared to as-grown theta-Al2O3. (c) 2007 American Institute of Physics. |