Spin- and Angle-Resolved Photoemission Study of the Alq3/Co Interface
| Autor: | Martin Aeschlimann, Johannes Stöckl, Nicolas Großmann, Anatol Jurenkow, Benjamin Stadtmüller, Mirko Cinchetti |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Spin polarization Spintronics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Organic semiconductor Condensed Matter::Materials Science General Energy Adsorption Ferromagnetism Chemical physics 0103 physical sciences Molecule Condensed Matter::Strongly Correlated Electrons Physical and Theoretical Chemistry 010306 general physics 0210 nano-technology Dispersion (chemistry) Spin (physics) |
| Zdroj: | The Journal of Physical Chemistry C. 122:6585-6592 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.7b10825 |
| Popis: | Controlling the interaction between organic semiconductors and ferromagnetic surfaces is one of the key issues for designing metal–organic hybrid interfaces for spintronic applications. The strong chemical interaction across such hybrid interfaces results in the formation of new spin-polarized hybrid interface states which determine all device-relevant properties. Here, we revisit the hybrid interface formed between the prototypical molecule Alq3 and the Co surface using spin- and angle-resolved photoemission. We reveal a significant change of the spectroscopic lineshape of the cobalt 3d bands by the adsorption of Alq3. The hole-like minority and the electron-like majority bands of the bare Co surface are replaced by an energetically very broad band with neglectable band dispersion along the Γ–X direction. Moreover, the magnitude and shape of the spin polarization of the Alq3/Co valence band structure are also significantly modified by the adsorption of Alq3 and become completely independent of the mome... |
| Databáze: | OpenAIRE |
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