Ferromagnetic Properties in Co-Substituted Titania Nanosheets

Abstract:

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Two-dimensional (2D) Ti1-xCoxO2 nanosheet, a recently discovered ferromagnic nanomaterial, has been investigated by magnetic and magneto-optical measurements. The multilayer films of Ti0.8Co0.2O2 nanosheets exhibit room-temperature ferromagnetism with magnetic moment of 1.4 μ B/Co. We also observe robust magnetic circular dichroism near the absorption edge at 4 eV, indicating a strong spin polarization in this 2D system. The first-principles study of Ti1-xCoxO2 nanosheet characterizes the ferromagnetic state with a spin-orbit-induced anisotropy.

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Periodical:

Edited by:

Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

119-122

DOI:

10.4028/www.scientific.net/KEM.388.119

Citation:

M. Osada et al., "Ferromagnetic Properties in Co-Substituted Titania Nanosheets", Key Engineering Materials, Vol. 388, pp. 119-122, 2009

Online since:

September 2008

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$35.00

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