热处理改善SrTiO_3环形元件的性能  

The Improvement of the Round SrTiO_3 Component by Heat Treatment

作　　者：籍聪麟[1] 曹全喜[1] 施建章[1] 黄云霞[1] 卫云鸽[1] 

机构地区：[1]西安电子科技大学技术物理学院,西安710071

出　　处：《压电与声光》2002年第6期452-454,共3页Piezoelectrics & Acoustooptics

摘　　要：通过对SrTiO3环形元件热处理前后三电极间电压的比较,利用晶界势垒模型和导电模型,讨论了正反电压差异的起因,并由此分析了热处理时晶界处电荷分布的变化及其对势垒高度的影响。结果是通过热处理可以使势垒高度变大,电压上升,三电极电压均匀性得到改善。By comparing the voltage measured in three three electrodes of the Round SrTiO3 Component before and after the heat treatment,we have found that the voltage uniformity is enhanced after heat treatment,With the grainboundry barrier model and the electric conduction model,we discuss the cause that results in the difference in voltage,and analyse the distribution change of the charge in the boundry and the influence on the barrier height during the heat treatment.The conclusion is that the barrier height become larger and the voltage become higher and more uniform.

关 键 词：热处理 SRTIO3 环形元件 三电极电压 均匀性 钛酸锶 晶界势垒 导电模型 直流微电机 

分 类 号：TM38[电气工程—电机]