Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO2

Jia Bin Wang; Kuei Ching Wu; Jyun Wei Mi; Chih-Wei Luo; Kaung-Hsiung Wu; Tzeng Ming Uen; Jiunn-Yuan Lin; Jenh-Yih Juang; Shiu Jen Liu

doi:10.1007/s00339-014-8788-2

Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO₂

Jia Bin Wang, Kuei Ching Wu, Jyun Wei Mi, Chih-Wei Luo, Kaung-Hsiung Wu, Tzeng Ming Uen, Jiunn-Yuan Lin, Jenh-Yih Juang, Shiu Jen Liu^*

^*此作品的通信作者

研究成果: Article › 同行評審

12 引文斯高帕斯（Scopus）

摘要

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.

原文	English
頁（從 - 到）	725-731
頁數	7
期刊	Applied Physics A: Materials Science and Processing
卷	118
發行號	2
DOIs	https://doi.org/10.1007/s00339-014-8788-2
出版狀態	Published - 2月 2014

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10.1007/s00339-014-8788-2

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title = "Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO2",

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.",

author = "Wang, {Jia Bin} and Wu, {Kuei Ching} and Mi, {Jyun Wei} and Chih-Wei Luo and Kaung-Hsiung Wu and Uen, {Tzeng Ming} and Jiunn-Yuan Lin and Jenh-Yih Juang and Liu, {Shiu Jen}",

note = "Publisher Copyright: {\textcopyright} 2014, Springer-Verlag Berlin Heidelberg.",

year = "2014",

month = feb,

doi = "10.1007/s00339-014-8788-2",

language = "English",

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journal = "Applied Physics A: Materials Science and Processing",

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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 - 2014/2

Y1 - 2014/2

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.

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U2 - 10.1007/s00339-014-8788-2

DO - 10.1007/s00339-014-8788-2

M3 - Article

AN - SCOPUS:84925508242

SN - 0947-8396

VL - 118

SP - 725

EP - 731

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 2

ER -

Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO2

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Room-temperature ferromagnetism in carbon- and nitrogen-doped rutile TiO₂