Indication of intrinsic room-temperature ferromagnetism in Ti1-xCoxO2-δ thin film : An x-ray magnetic circular dichroism study
Applied Physics Letters Volume 89 Issue 6
published_at 2006-08-07
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| File | |
| Title ( eng ) |
Indication of intrinsic room-temperature ferromagnetism in Ti1-xCoxO2-δ thin film : An x-ray magnetic circular dichroism study
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| Creator |
Mamiya Kazutoshi
Koide Tsuneharu
Fujimori Atsushi
Tokano Hiroyuki
Manaka Hirotaka
Toyosaki Hidemi
Fukumura Tomoteru
Kawasaki Masashi
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| Source Title |
Applied Physics Letters
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| Volume | 89 |
| Issue | 6 |
| Abstract |
Soft x-ray magnetic circular dichroism (XMCD) measurements at the Co L2,3 edges of Co-doped rutile TiO2 at room temperature revealed clear multiplet features characteristic of ferromagnetic Co2+ ions coordinated by O2. ions, being in sharp contrast to the featureless XMCD spectrum of Co metal or metallic clusters. The absorption and XMCD spectra agree well with a full atomic-multiplet calculation for the Co2+ high-spin state in the D2h-symmetry crystal field at the Ti site in rutile TiO2. The results indicate that the ferromagnetism arises from the Co2+ ions substituting the Ti4+ ions.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Institute of Physics
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| Date of Issued | 2006-08-07 |
| Rights |
Copyright (c) 2006 American Institute of Physics.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0003-6951
[DOI] 10.1063/1.2236829
[NCID] AA00543431
[DOI] http://dx.doi.org/10.1063/1.2236829
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