中国物理B ›› 2012, Vol. 21 ›› Issue (6): 67502-067502.doi: 10.1088/1674-1056/21/6/067502

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Texture and self-biased property of an oriented M-type barium ferrite thick film by tape casting

陈大明, 刘颖力, 李元勋, 杨楷, 张怀武   

  1. State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2011-07-31 修回日期:2011-12-05 出版日期:2012-05-01 发布日期:2012-05-01
  • 基金资助:
    Project supported by the Foundation of the Ministry of Science and Technology of China (Grant No. 2009GJE00033), the National Natural Youth Fund of China (Grant No. 61001025), and the National Program for Science and Technology Development of Guangdong Province, China (Grant No. 2010B090400314).

Texture and self-biased property of an oriented M-type barium ferrite thick film by tape casting

Chen Da-Ming(陈大明), Liu Ying-Li(刘颖力)†, Li Yuan-Xun(李元勋), Yang Kai(杨楷), and Zhang Huai-Wu(张怀武)   

  1. State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2011-07-31 Revised:2011-12-05 Online:2012-05-01 Published:2012-05-01
  • Contact: Liu Ying-Li E-mail:lyl@uestc.edu.cn
  • Supported by:
    Project supported by the Foundation of the Ministry of Science and Technology of China (Grant No. 2009GJE00033), the National Natural Youth Fund of China (Grant No. 61001025), and the National Program for Science and Technology Development of Guangdong Province, China (Grant No. 2010B090400314).

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摘要： In this paper, the oriented M-type barium ferrite (BaM) thick films with different thicknesses are prepared by tape casting. It is found that the crystallographic alignment degree (f), the pore and the squareness ratio (Mr/Ms) are not affected by the thickness of the film. XRD and SEM results show that the thick film has hexagonal morphology with a crystal texture of c-axis grains perpendicular to film plane. The hysteresis curve indicates that the BaM thick film exhibits a self-biased property with a remanent magnetization of 3.30 T, a squareness ratio (Mr/Ms) of 0.81, and a coercivity of 0.40 T. The results show that the BaM thick film has potential for use in self-biasing microwave devices, and also proves that the tape casting technique is capable of fabricating high-quality barium ferrite films, thus providing a unique opportunity to realize the large area production of thick film.

关键词: barium ferrite, magnetic material, thick films

Abstract: In this paper, the oriented M-type barium ferrite (BaM) thick films with different thicknesses are prepared by tape casting. It is found that the crystallographic alignment degree (f), the pore and the squareness ratio (Mr/Ms) are not affected by the thickness of the film. XRD and SEM results show that the thick film has hexagonal morphology with a crystal texture of c-axis grains perpendicular to film plane. The hysteresis curve indicates that the BaM thick film exhibits a self-biased property with a remanent magnetization of 3.30 T, a squareness ratio (Mr/Ms) of 0.81, and a coercivity of 0.40 T. The results show that the BaM thick film has potential for use in self-biasing microwave devices, and also proves that the tape casting technique is capable of fabricating high-quality barium ferrite films, thus providing a unique opportunity to realize the large area production of thick film.

Key words: barium ferrite, magnetic material, thick films

中图分类号:  (Ferrimagnetics)

  • 75.50.Gg
75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)