X-ray photoelectron spectroscopy analysis as a tool to assess factors influencing magnetic anisotropy type in Co/MgO system with gold interlayer
| Autor: | Andrea Goldoni, Y. Syryanyy, P. Konstantynov, Luca Cozzarini, Yevgen Melikhov, Laurent Nittler, Matteo Dalmiglio, I. N. Demchenko, L. Gladczuk, Maryna Chernyshova, Kinga Lasek |
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| Přispěvatelé: | Demchenko, Iraida N., Syryanyy, Yevgen, Melikhov, Yevgen, Nittler, Laurent, Gladczuk, Leszek, Lasek, Kinga, Cozzarini, Luca, Dalmiglio, Matteo, Goldoni, Andrea, Konstantynov, Pavlo, Chernyshova, Maryna |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Analytical chemistry chemistry.chemical_element 02 engineering and technology Electronic structure Materials Science (all) Condensed Matter Physics 01 natural sciences Oxygen Atomic orbital X-ray photoelectron spectroscopy Transition metal 0103 physical sciences General Materials Science QC 010302 applied physics Anisotropy energy Mechanical Engineering Metals and Alloys 021001 nanoscience & nanotechnology Magnetic anisotropy chemistry Mechanics of Materials Density functional theory 0210 nano-technology |
| ISSN: | 1359-6462 |
| Popis: | X-ray photoelectron spectroscopy (XPS) studies of Au/Co/Au(0.3 nm)/MgO and Au/Co/MgO systems were conducted in order to monitor the electronic structure modification at Co/MgO interface with/without gold interlayer. A detailed analysis of Co 2 p states revealed that the amount of minor oxygen contribution at Co/MgO interface decreased after the Au interlayer was added. The obtained XPS results together with density functional theory (DFT) allowed explanation of the increase of surface anisotropy energy in the sample with the gold interlayer in terms of (i) noble and transitional metal d - d orbital hybridization; (ii) interfacial Co 3 d and O 2 p ; and (iii) interface imperfection. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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