Abstract
We have investigated magnetic and magneto-optical properties of two-dimensional (2D) Ti0.8 Co0.2 O2 nanosheet, a new nanosized titanium oxide derived from layered titanates by exfoliation. Despite heavy doped 2D system in the dielectric ground, the multilayer films of Ti0.8 Co0.2 O2 nanosheets exhibit room-temperature ferromagnetism with magnetic moment of 1.4 μB 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 Ti0.8 Co0.2 O2 nanosheet characterizes the ferromagnetic state with a spin-orbit-induced anisotropy.
| Original language | English |
|---|---|
| Article number | 153301 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 73 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Ferromagnetism in two-dimensional Ti0.8 Co0.2 O2 nanosheets. / Osada, M.; Ebina, Y.; Fukuda, K.; Ono, K.; Takada, K.; Yamaura, K.; Takayama-Muromachi, E.; Sasaki, T.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 73, No. 15, 153301, 2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ferromagnetism in two-dimensional Ti0.8 Co0.2 O2 nanosheets
AU - Osada, M.
AU - Ebina, Y.
AU - Fukuda, K.
AU - Ono, K.
AU - Takada, K.
AU - Yamaura, K.
AU - Takayama-Muromachi, E.
AU - Sasaki, T.
PY - 2006
Y1 - 2006
N2 - We have investigated magnetic and magneto-optical properties of two-dimensional (2D) Ti0.8 Co0.2 O2 nanosheet, a new nanosized titanium oxide derived from layered titanates by exfoliation. Despite heavy doped 2D system in the dielectric ground, the multilayer films of Ti0.8 Co0.2 O2 nanosheets exhibit room-temperature ferromagnetism with magnetic moment of 1.4 μB 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 Ti0.8 Co0.2 O2 nanosheet characterizes the ferromagnetic state with a spin-orbit-induced anisotropy.
AB - We have investigated magnetic and magneto-optical properties of two-dimensional (2D) Ti0.8 Co0.2 O2 nanosheet, a new nanosized titanium oxide derived from layered titanates by exfoliation. Despite heavy doped 2D system in the dielectric ground, the multilayer films of Ti0.8 Co0.2 O2 nanosheets exhibit room-temperature ferromagnetism with magnetic moment of 1.4 μB 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 Ti0.8 Co0.2 O2 nanosheet characterizes the ferromagnetic state with a spin-orbit-induced anisotropy.
UR - http://www.scopus.com/inward/record.url?scp=33645564126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645564126&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.73.153301
DO - 10.1103/PhysRevB.73.153301
M3 - Article
VL - 73
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 15
M1 - 153301
ER -