Magneto-Optical Effects in Superlattice Assemblies of Ferromagnetic Nanosheets |
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| Journal | Key Engineering Materials (Volume 350) |
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| Volume | Electroceramics in Japan X |
| Edited by | K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki |
| Pages | 15-18 |
| DOI | 10.4028/www.scientific.net/KEM.350.15 |
| Citation | Minoru Osada et al., 2007, Key Engineering Materials, 350, 15 |
| Online since | October, 2007 |
| Authors | Minoru Osada, Yasuo Ebina, Kazunori Takada, Takayoshi Sasaki |
| Keywords | Ferromagnetism, Layer-by-Layer Assembly, Magneto-Optical Effect, Titania Nanosheet |
| Abstract | We have demonstrated a fabrication procedure for spin-electronic devices by using two-dimentional titania nanosheets. Magneto-optical Kerr measurements demonstrate that Co-substituted titania nanosheets (Ti0.8Co0.2O2) act as nanoscale ferromagnetic layers at room temperature, and their multilayer-assemblies exhibit robust magnetic circular dichroism (104–105 deg/cm) near the absorption edge at 260 nm, an operating wavelength being the shortest attained so far. The availability of ferromagnetic nanostructures and their molecule-level assembly allow the rational design and construction of high-efficiency magneto-optical devices by forming superlattices. |
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