...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Charging and domain switching in ferroelectrics LiNbO3 by electron beam
【24h】

Charging and domain switching in ferroelectrics LiNbO3 by electron beam

机译：通过电子束的铁电气LINBO3中的充电和域

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Comprehensive experimental results on the kinetic characteristics of LiNbO3 charging process are reported. Secondary electron emission (SEE) yield, surface potential, and the sum of leakage and displacement currents were experimentally obtained during electron beam irradiation in the energy range from 200 eV to 10 keV for both sides of the Z-cut. We found that at the initial stage of charging, the SEE current that were collected by a hemispherical electrode changes its sign. It was explained by the emergence of a large displacement current on the collector. The direction of this current is opposite to the directions of SEE and backscattered electron currents. If a large positive charge arises on the surface of ferroelectrics, the positive displacement current dominates the secondary emission current; this fact was confirmed experimentally. Also, a high value of the negative surface potential in the electron energy range 200-700 cV for -Z cut of lithium niobate was found, though in this energy region, positive charging is observed for nonpolar dielectrics. The influence of domain repolarization currents on the measured emitted electrons and displacement current signals is shown.
机译：据报道了综合实验结果对LINBO3充电过程的动力学特性。二次电子发射（参见）屈服，表面电位和泄漏和泄漏和位移电流的总和在能量范围内的电子束照射期间从200eV至10kev的电束照射到Z切割的两侧。我们发现，在充电的初始阶段，由半球电极收集的有关电流改变其标志。它是通过收集器上的大型位移电流的出现来解释。该电流的方向与看和反向散射电子电流的方向相反。如果在铁电器表面产生大的正电荷，则正排量电流占据二次发射电流;这一事实是通过实验证实的。而且，发现电子能量范围内的负面电位200-700CV用于-Z -Z的铌酸锂切割的高值，但在该能量区域中，对于非极化电介质观察到正充电。示出了域复极电流对测量的发射电子和位移电流信号的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号