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Structural, electrical and magnetic studies of Co:SnO_2 and (Co,Mo):SnO_2 films prepared by pulsed laser deposition

机译:通过脉冲激光沉积制备的Co:SnO_2和(Co,Mo):SnO_2薄膜的结构,电磁学研究

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摘要

Here we report on the structural, optical, electrical and magnetic properties of Co-doped and (Co.Mo)-codoped SnO_2 thin films deposited on r-cut sapphire substrates by pulsed laser deposition. Substrate temperature during deposition was kept at 500℃. X-ray diffraction analysis showed that the undoped and doped films are crystalline with predominant orientation along the [101] direction regardless of the doping concentration and doping element. Optical studies revealed that the presence of Mo reverts the blue shift trend observed for the Co-doped films. For the Co and Mo doping concentrations studied, the incorporation of Mo did not contribute to increase the conductivity of the films or to enhance the ferromagnetic order of the Co-doped films.
机译:在这里,我们报道了通过脉冲激光沉积在r形切割蓝宝石衬底上沉积的Co掺杂和(Co.Mo)掺杂的SnO_2薄膜的结构,光学,电和磁性能。沉积期间的基板温度保持在500℃。 X射线衍射分析表明,不考虑掺杂浓度和掺杂元素,未掺杂和掺杂的膜是沿[101]方向主要取向的晶体。光学研究表明,Mo的存在可以逆转Co掺杂薄膜的蓝移趋势。对于所研究的Co和Mo掺杂浓度,Mo的掺入无助于增加膜的电导率或增强Co掺杂膜的铁磁序。

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  • 来源
    《Applied Surface Science》 |2013年第1期|127-131|共5页
  • 作者单位

    University of Lisbon, Physics Dept. and ICEMS, 1749-016 Lisboa, Portugal,lnstituto Superior de Engenharia de Lisboa and ICEMS, 1959-007 Lisboa, Portugal;

    University of Lisbon, Physics Dept. and ICEMS, 1749-016 Lisboa, Portugal;

    lnstituto Superior de Engenharia de Lisboa and ICEMS, 1959-007 Lisboa, Portugal;

    New University of Lisbon, Mater. Sri. Dept. and CTS, 2829-516 Caparica, Portugal;

    lnstituto Superior Tecnico, ITN and CFMCUL, 2686-953 Sacavem, Portugal;

    lnstituto Superior Tecnico, Physics Dept. and ICEMS, 1049-001 Lisboa, Portugal;

    University of Lisbon, Physics Dept. and ICEMS, 1749-016 Lisboa, Portugal;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tin oxide; (Co.Mo)-codoping; Optical band gap; Ferromagnetism;

    机译:氧化锡(Co.Mo)共掺杂;光学带隙铁磁性;

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