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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) |
State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China |
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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.
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Received: 31 July 2011
Revised: 05 December 2011
Accepted manuscript online:
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PACS:
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75.50.Gg
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(Ferrimagnetics)
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75.70.-i
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(Magnetic properties of thin films, surfaces, and interfaces)
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Fund: 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). |
Corresponding Authors:
Liu Ying-Li
E-mail: lyl@uestc.edu.cn
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Cite this article:
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) Texture and self-biased property of an oriented M-type barium ferrite thick film by tape casting 2012 Chin. Phys. B 21 067502
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