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^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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	https://doi.org/10.1007/s00339-014-8788-2
Publication status	Published - 2014 Feb

ASJC Scopus subject areas

General Chemistry
General Materials Science

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@article{02f2730edff34cccba5f9ccd2680850c,

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 Luo, \{Chih Wei\} and Wu, \{Kaung Hsiung\} and Uen, \{Tzeng Ming\} and Lin, \{Jiunn Yuan\} and Juang, \{Jenh Yih\} 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",

volume = "118",

pages = "725--731",

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

issn = "0947-8396",

publisher = "Springer Heidelberg",

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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.

UR - https://www.scopus.com/pages/publications/84925508242

UR - https://www.scopus.com/pages/publications/84925508242#tab=citedBy

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

Abstract

ASJC Scopus subject areas

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