Enhancement of magneto-optical properties of anatase Co:TiO2 Co-doped with Nb

被引：6
|
作者：
Kinoda, Go
Hitosugi, Taro [1 ]
Yamamoto, Yukio
Furubayashi, Yutaka
Inaba, Kazuhisa
Hirose, Yasushi
Shimada, Toshihiro
Hasegawa, Tetsuya
机构：
[1] KAST, Kawasaki, Kanagawa 2130012, Japan
[2] Univ Tokyo, Dept Chem, Tokyo 1130033, Japan
[3] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2006年 / 45卷 / 12-16期
关键词：
TiO2; ferromagnetism; diluted magnetic semiconductor; DMS; epitaxial; thin film; Co-doping; pulsed laser deposition; PLD;
D O I：
10.1143/JJAP.45.L387
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have fabricated Ti0.95-xNbxCo0.05O2 thin films by the pulsed laser deposition technique. Carrier density was found to be almost identical to the Nb concentration up to x = 0.06, indicating that doped Nb atoms generate carriers with > 80% efficiency. In this doping range, magneto-optical properties were significantly enhanced by Nb-doping. The remanent Faraday rotation at a wavelength of 405 nm was as high as 5.6 x 10(3) deg/cm, which is approximately one order of magnitude higher than that of a film free of Nb-doping. The present results support the hypothesis that conduction electrons play an essential role in the ferromagnetism of Co-doped TiO2.
引用
收藏
页码：L387 / L389
页数：3
相关论文
共 50 条
  • [1] Magneto-optical spectroscopy of anatase TiO2 doped with Co
    Fukumura, T
    Yamada, Y
    Tamura, K
    Nakajima, K
    Aoyama, T
    Tsukazaki, A
    Sumiya, M
    Fuke, S
    Segawa, Y
    Chikyow, T
    Hasegawa, T
    Koinuma, H
    Kawasaki, M
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2003, 42 (2A): : L105 - L107
  • [2] Magneto-optical spectroscopy of anatase TiO2 doped with Co
    Fukumura, T., 1600, Japan Society of Applied Physics (42):
  • [3] Electronic and optical properties of C and Nb co-doped anatase TiO2
    Zhu, H. X.
    Liu, J. -M.
    COMPUTATIONAL MATERIALS SCIENCE, 2014, 85 : 164 - 171
  • [4] Magneto-optical properties of co-doped TiO2 thin films grown by pulsed laser deposition
    Branford, W. R.
    Neal, J. R.
    Spencer, C. L.
    Gehring, G. A.
    Fox, A. M.
    Popovici, N.
    da Silva, R. C.
    Conde, O.
    Conde, L. F.
    PHYSICS OF SEMICONDUCTORS, PTS A AND B, 2007, 893 : 1199 - +
  • [5] Magnetic properties of Co-doped TiO2 anatase nanopowders
    Pereira, L. C. J.
    Nunes, M. R.
    Monteiro, O. C.
    Silvestre, A. J.
    APPLIED PHYSICS LETTERS, 2008, 93 (22)
  • [6] Understanding electronic and optical properties of La and Mn co-doped anatase TiO2
    Zhang, Renhui
    Zhao, Juan
    Yang, Yingchang
    Lu, Zhibin
    Shi, Wei
    COMPUTATIONAL CONDENSED MATTER, 2016, 6 : 5 - 17
  • [7] Magneto-optical properties of Co/TiO2 layered films
    Polyakov, V. V.
    Polyakova, K. P.
    Seredkin, V. A.
    Patrin, G. S.
    TRENDS IN MAGNETISM: NANOMAGNETISM, 2014, 215 : 254 - +
  • [8] Optical and Dielectric Properties of the Co-doped TiO2
    Mangrola, M. H.
    Parmar, B. H.
    Pillai, A. S.
    Joshi, V. G.
    PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS & MATERIAL SCIENCE (RAM 2013), 2013, 1536 : 765 - +
  • [9] Epitaxial growth and properties of ferromagnetic co-doped TiO2 anatase
    Chambers, SA
    Thevuthasan, S
    Farrow, RFC
    Marks, RF
    Thiele, JU
    Folks, L
    Samant, MG
    Kellock, AJ
    Ruzycki, N
    Ederer, DL
    Diebold, U
    APPLIED PHYSICS LETTERS, 2001, 79 (21) : 3467 - 3469
  • [10] Electronic and optical properties study on Fe-B co-doped anatase TiO2
    Li, Xuechao
    Shi, Jianhao
    Chen, Hao
    Wan, Rundong
    Leng, Chongyan
    Lei, Ying
    CHEMICAL PHYSICS, 2016, 477 : 52 - 60
12345