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
陈大明, 刘颖力, 李元勋, 杨楷, 张怀武
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)
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.
中图分类号: (Ferrimagnetics)