| Autor: |
Hukic-Markosian, Golda, Yaxin Zhai, Montanari, Danielle E., Ott, Steven, Braun, Adrianne, Dali Sun, Vardeny, Zeev V., Bartl, Michael H. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2014, Vol. 116 Issue 1, p013906-1-013906-6, 6p |
| Abstrakt: |
Periodically organized magnetic cobalt frameworks have been fabricated by a combination of colloidal self-assembly and electrochemical deposition. The ordered cobalt frameworks have a closed-packed face-centered-cubic inverse opal structure and are fabricated as micrometer-thick films. The size and density of the cobalt crystallites that compose the cobalt frameworks can be modified by a thermal annealing step following the electrodeposition. Comparison of the magnetic properties (studied by magneto-optical Kerr effect (MOKE) spectroscopy) of as-deposited and annealed samples reveals strong impact of the annealing process. Fitting the obtained MOKE response to a modified Langevin model reveals optimum values of coercivity, pinning site density, and inter-domain coupling for samples that are thermally annealed at 440 °C. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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