Structure, optical, and magnetic properties of rutile Sn1-xMnxO2 thin films

被引：10
作者：
Xiao, Yuhua [1 ]
Ge, Shihui [1 ]
Xi, Li [1 ]
Zuo, Yalu [1 ]
Zhou, Xueyun [1 ]
Zhang, Li [1 ]
Wang, Guowei [1 ]
Han, Xiufeng [2 ]
Wen, Zhenchao [2 ]
机构：
[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Room temperature ferromagnetism; Mn-doped SnO2 film; Bound magnetic polaron; ROOM-TEMPERATURE; SEMICONDUCTORS; FERROMAGNETISM; FLUCTUATIONS; POLARON; BULK;
D O I：
10.1016/j.apsusc.2009.04.193
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Sn-1 xMnxO2 (x <= 0.11) thin films were fabricated by sol-gel and spin-coated method on Si (1 1 1) substrate. X-ray diffraction revealed that single-phase rutile polycrystalline structure was obtained for x up to about 0.078. Evolution of the lattice parameters and X-ray photoelectron spectroscopy studies confirmed the incorporation of Mn3+ cations into rutile SnO2 lattice. Optical transmission studies show that the band gap energy (E-g) broadens with the increasing of Mn content. Magnetic measurements revealed that all samples exhibit room temperature ferromagnetism (RTFM), which is identified as an intrinsic characteristic. Interestingly, the magnetic moment per Mn atom decreases with the increasing Mn content. The origin of RTFM can be interpreted in terms of the bound magnetic polaron model. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码：7981 / 7984
页数：4
相关论文
共 28 条
  • [1] Diluted magnetic semiconductors in the low carrier density regime
    Bhatt, RN
    Berciu, M
    Kennett, MP
    Wan, X
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 2002, 15 (01): : 71 - 83
  • [2] 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
    [J]. APPLIED PHYSICS LETTERS, 2001, 79 (21) : 3467 - 3469
  • [3] Donor impurity band exchange in dilute ferromagnetic oxides
    Coey, JMD
    Venkatesan, M
    Fitzgerald, CB
    [J]. NATURE MATERIALS, 2005, 4 (02) : 173 - 179
  • [4] EFFECT OF FLUCTUATIONS OF MAGNETIZATION ON THE BOUND MAGNETIC POLARON - COMPARISON WITH EXPERIMENT
    DIETL, T
    SPALEK, J
    [J]. PHYSICAL REVIEW LETTERS, 1982, 48 (05) : 355 - 358
  • [5] EFFECT OF THERMODYNAMIC FLUCTUATIONS OF MAGNETIZATION ON THE BOUND MAGNETIC POLARON IN DILUTE MAGNETIC SEMICONDUCTORS
    DIETL, T
    SPALEK, J
    [J]. PHYSICAL REVIEW B, 1983, 28 (03): : 1548 - 1563
  • [6] Structural and magnetic properties of chemically synthesized Sn1-xMnxO2 nanocrystalline powders
    Duan, L. B.
    Rao, G. H.
    Yu, J.
    Wang, Y. C.
    Liu, G. Y.
    Liang, J. K.
    [J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (06)
  • [7] Bulk Sn1-xMnxO2 magnetic semiconductors without room-temperature ferromagnetism
    Gao, K. H.
    Li, Z. Q.
    Liu, X. J.
    Song, W.
    Liu, H.
    Jiang, E. Y.
    [J]. SOLID STATE COMMUNICATIONS, 2006, 138 (04) : 175 - 178
  • [8] Cobalt-substituted SnO2 thin films:: A transparent ferromagnetic semiconductor
    Gopinadhan, K.
    Pandya, Dinesh K.
    Kashyap, Subhash C.
    Chaudhary, Sujeet
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 99 (12)
  • [9] Intrinsic ferromagnetism in insulating cobalt doped anatase TiO2 -: art. no. 157204
    Griffin, KA
    Pakhomov, AB
    Wang, CM
    Heald, SM
    Krishnan, KM
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (15)
  • [10] Hamaya K, 2006, PHYS REV B, V73, DOI 10.1103/PhysRevB.73.155204
123