Growth and properties of Co-doped TiO2 thin films grown on buffered Si substrate

被引：9
作者：
Yang, HS [1 ]
Singh, RK [1 ]
机构：
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 11期
关键词：
D O I：
10.1063/1.1651799
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Epitaxial growth of a Co-doped anatase TiO2 thin film on silicon has been achieved by using SrTiO3/TiN bilayers as a buffer. All layers were sequentially formed by pulsed laser deposition. X-ray phi scan and selective area electron diffraction patterns revealed that SrTiO3/TiN buffer layers were grown with a cube-on-cube orientation relationship with silicon. Ferromagnetism was observed at room temperature with a coercivity of around 607 Oe. However, the ferromagnetism is attributed to the highly cobalt enriched TiO2 clusters which nucleate after a certain growth of film, as observed by atomic/magnetic force microscopy as well as cross-sectional transmission electron microscopy. (C) 2004 American Institute of Physics.
引用
收藏
页码：7192 / 7194
页数：3
相关论文
共 11 条
  • [1] [Anonymous], UNPUB
  • [2] Clusters and magnetism in epitaxial Co-doped TiO2 anatase
    Chambers, SA
    Droubay, T
    Wang, CM
    Lea, AS
    Farrow, RFC
    Folks, L
    Deline, V
    Anders, S
    [J]. APPLIED PHYSICS LETTERS, 2003, 82 (08) : 1257 - 1259
  • [3] Epitaxial growth and properties of MBE-grown ferromagnetic Co-doped TiO2 anatase films on SrTiO3(001) and LaAlO3(001)
    Chambers, SA
    Wang, CM
    Thevuthasan, S
    Droubay, T
    McCready, DE
    Lea, AS
    Shutthanandan, V
    Windisch, CF
    [J]. THIN SOLID FILMS, 2002, 418 (02) : 197 - 210
  • [4] ULTRAHIGH-VACUUM METALORGANIC CHEMICAL-VAPOR-DEPOSITION GROWTH AND IN-SITU CHARACTERIZATION OF EPITAXIAL TIO2 FILMS
    CHEN, S
    MASON, MG
    GYSLING, HJ
    PAZPUJALT, GR
    BLANTON, TN
    CASTRO, T
    CHEN, KM
    FICTORIE, CP
    GLADFELTER, WL
    FRANCIOSI, A
    COHEN, PI
    EVANS, JF
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1993, 11 (05): : 2419 - 2429
  • [5] Formation of Co nanoclusters in epitaxial Ti0.96Co0.04O2 thin films and their ferromagnetism
    Kim, DH
    Yang, JS
    Lee, KW
    Bu, SD
    Noh, TW
    Oh, SJ
    Kim, YW
    Chung, JS
    Tanaka, H
    Lee, HY
    Kawai, T
    [J]. APPLIED PHYSICS LETTERS, 2002, 81 (13) : 2421 - 2423
  • [6] Room-temperature ferromagnetism in transparent transition metal-doped titanium dioxide
    Matsumoto, Y
    Murakami, M
    Shono, T
    Hasegawa, T
    Fukumura, T
    Kawasaki, M
    Ahmet, P
    Chikyow, T
    Koshihara, S
    Koinuma, H
    [J]. SCIENCE, 2001, 291 (5505) : 854 - 856
  • [7] Ferromagnetism in co-doped TiO2 rutile thin films grown by laser molecular beam epitaxy
    Matsumoto, Y
    Takahashi, R
    Murakami, M
    Koida, T
    Fan, XJ
    Hasegawa, T
    Fukumura, T
    Kawasaki, M
    Koshihara, SY
    Koinuma, H
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (11B): : L1204 - L1206
  • [8] Anatase TiO2 thin films grown on lattice-matched LaAlO3 substrate by laser molecular-beam epitaxy
    Murakami, M
    Matsumoto, Y
    Nakajima, K
    Makino, T
    Segawa, Y
    Chikyow, T
    Ahmet, P
    Kawasaki, M
    Koinuma, H
    [J]. APPLIED PHYSICS LETTERS, 2001, 78 (18) : 2664 - 2666
  • [9] Domain epitaxy: A unified paradigm for thin film growth
    Narayan, J
    Larson, BC
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 93 (01) : 278 - 285
  • [10] Heteroepitaxial structures of SrTiO3/TiN on Si(100) by in situ pulsed laser deposition
    Vispute, RD
    Narayan, J
    Dovidenko, K
    Jagannadham, K
    Parikh, N
    Suvkhanov, A
    Budai, JD
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 80 (12) : 6720 - 6724
12