Gigantic magneto-optical effects induced by (FeCo) -cosubstitution in titania nanosheets

Minoru Osada, Masayuki Itose, Yasuo Ebina, Kanta Ono, Shigenori Ueda, Keisuke Kobayashi, Takayoshi Sasaki

研究成果: Article

36 引用 (Scopus)

抜粋

Magneto-optical Faraday effect has been investigated for 3d -transition-metal-substituted titania nanosheets Ti1-xM xO2 (M=Fe,Co). In Ti0.8 Co0.2O 2 and Ti0.6 Fe0.4O2 nanosheets, a strong magneto-optical response (∼ 104 deg/cm) appeared near the absorption edge at 260 nm. We find that tailoring magneto-optical properties could be achieved by (FeCo) cosubstitution and an optimally doped Ti 0.75 Fe0.1Co0.15O2 nanosheet exhibits a gigantic magneto-optical response (∼ 105 deg/cm) over the wide wavelength region (400-750 nm). By analyzing electronic structures from first-principle calculations, we have clarified that the d-d transitions are responsible for the gigantic signal in (FeCo) -cosubstituted nanosheets.

元の言語English
記事番号253110
ジャーナルApplied Physics Letters
92
発行部数25
DOI
出版物ステータスPublished - 2008
外部発表Yes

    フィンガープリント

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

これを引用

Osada, M., Itose, M., Ebina, Y., Ono, K., Ueda, S., Kobayashi, K., & Sasaki, T. (2008). Gigantic magneto-optical effects induced by (FeCo) -cosubstitution in titania nanosheets. Applied Physics Letters, 92(25), [253110]. https://doi.org/10.1063/1.2937094