Abstract
Marked room-temperature ferromagnetism (RTFM) was obtained in carbon- and nitrogen-doped rutile (Formula presented.) powders. X-ray photoelectron spectroscopy measurements revealed the co-existence of considerable densities of states near the Fermi level ((Formula presented.)) and oxygen vacancies primarily induced by C- and N-doping. Density functional theory calculations showed that the local moments responsible for the observed RTFM in N-doped (Formula presented.) were primarily attributed to the partially populated, spin-polarized Ti (Formula presented.) band. In addition to the unfilled Ti (Formula presented.) band, the spin splitting in C (Formula presented.)states near (Formula presented.) in C-doped (Formula presented.), which may be induced by the (Formula presented.) interaction between the C impurities and neighboring oxygen ions, results in Stoner band-splitting-type ferromagnetism.
| Original language | English |
|---|---|
| Pages (from-to) | 725-731 |
| Number of pages | 7 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 118 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
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Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO2 . / Wang, Jia Bin; Wu, Kuei Ching; Mi, Jyun Wei; Luo, Chih Wei; Wu, Kaung Hsiung; Uen, Tzeng Ming; Lin, Jiunn Yuan; Juang, Jenh Yih; Liu, Shiu-Jen.
In: Applied Physics A: Materials Science and Processing, Vol. 118, No. 2, 01.01.2014, p. 725-731.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO2
AU - Wang, Jia Bin
AU - Wu, Kuei Ching
AU - Mi, Jyun Wei
AU - Luo, Chih Wei
AU - Wu, Kaung Hsiung
AU - Uen, Tzeng Ming
AU - Lin, Jiunn Yuan
AU - Juang, Jenh Yih
AU - Liu, Shiu-Jen
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Marked room-temperature ferromagnetism (RTFM) was obtained in carbon- and nitrogen-doped rutile (Formula presented.) powders. X-ray photoelectron spectroscopy measurements revealed the co-existence of considerable densities of states near the Fermi level ((Formula presented.)) and oxygen vacancies primarily induced by C- and N-doping. Density functional theory calculations showed that the local moments responsible for the observed RTFM in N-doped (Formula presented.) were primarily attributed to the partially populated, spin-polarized Ti (Formula presented.) band. In addition to the unfilled Ti (Formula presented.) band, the spin splitting in C (Formula presented.)states near (Formula presented.) in C-doped (Formula presented.), which may be induced by the (Formula presented.) interaction between the C impurities and neighboring oxygen ions, results in Stoner band-splitting-type ferromagnetism.
AB - Marked room-temperature ferromagnetism (RTFM) was obtained in carbon- and nitrogen-doped rutile (Formula presented.) powders. X-ray photoelectron spectroscopy measurements revealed the co-existence of considerable densities of states near the Fermi level ((Formula presented.)) and oxygen vacancies primarily induced by C- and N-doping. Density functional theory calculations showed that the local moments responsible for the observed RTFM in N-doped (Formula presented.) were primarily attributed to the partially populated, spin-polarized Ti (Formula presented.) band. In addition to the unfilled Ti (Formula presented.) band, the spin splitting in C (Formula presented.)states near (Formula presented.) in C-doped (Formula presented.), which may be induced by the (Formula presented.) interaction between the C impurities and neighboring oxygen ions, results in Stoner band-splitting-type ferromagnetism.
UR - http://www.scopus.com/inward/record.url?scp=84925508242&partnerID=8YFLogxK
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U2 - 10.1007/s00339-014-8788-2
DO - 10.1007/s00339-014-8788-2
M3 - Article
AN - SCOPUS:84925508242
VL - 118
SP - 725
EP - 731
JO - Applied Physics
JF - Applied Physics
SN - 0340-3793
IS - 2
ER -