| Autor: |
Veis, M., Zahradnik, M., Ohnoutek, L., Beran, L., Kucera, M., Xue Yin Sun, Chen Zhang, Aimon, Nicolas M., Taichi Goto, Onbasli, Mehmet C., Dong Hun Kim, Hong Kyoon Choi, Ross, C. A. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2015, Vol. 117 Issue 17, p17A746-1-17A746-4, 4p, 1 Diagram, 3 Graphs |
| Abstrakt: |
Sr(Ga0.7 Co0.3)O3-δ/Co perovskite/metal thin films have been systematically studied by means of Faraday and Kerr magneto-optical spectroscopies. The samples were prepared by pulsed laser deposition on (001) (LaAlO3)0.3(Sr2AlTaO6)0.7 (LSAT) and Si substrates, and grew as a perovskite matrix containing approximately 6% by volume of embedded metallic Co nanoparticles with diameter less than 20 nm, which were distributed throughout the film and at the film-substrate interface. The film thickness ranged from 130 to 310 nm. The perovskite matrix was single crystal on LSAT and polycrystalline on Si. The magneto-optical spectroscopy was carried out in both Faraday and Kerr configurations in the photon energy range from 0.5 to 5 eV in magnetic fields sufficient for sample saturation, showing a strong thickness dependence of the magneto-optical effect. This dependence was attributed to the different metallic Co content, nanoparticle size, and accumulation at the film-substrate interface. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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