| Bi2Sr2Ca1—xPrxCu2O8＋δ系列超导体的电子结构研究 |
| |
| 引用本文： | 李旗,陈仙辉.Bi2Sr2Ca1—xPrxCu2O8＋δ系列超导体的电子结构研究[J].中国科学技术大学学报,1999,29(1):55-59. |
| |
| 作者姓名： | 李旗 陈仙辉 |
| |
| 作者单位： | 中国科学技术大学国家同步辐射实验室，中国科学技术大学物理系 |
| |
| 摘 要： | 采用常规Ｘ射线光电子能谱和同步辐射光电子能谱分别研究了超导系列样品Ｂｉ２Ｓｒ２Ｃａ１－ｘＰｒｘＣｕ２Ｏ８＋δ的芯能级谱和价带谱，讨论了这一系列样品电子结构变化的机制．实验发现随着Ｐｒ的掺杂，各芯能级谱和价带谱的位移都不同，根据Ｃａ２ｐ谱的变化规律，可认为Ｐｒ离子主要占据Ｃａ离子格位
|
| 关 键 词： | Bi系超导体，掺杂，光电子能谱 |
Numerical Simulation of the Spontaneous Emission in the Optical Klystron of NSRL |
| |
| DIAO Caozheng,LIU Jinying,HE Duohui,JIA Qika,XU Hongliang.Numerical Simulation of the Spontaneous Emission in the Optical Klystron of NSRL[J].Journal of University of Science and Technology of China,1999,29(1):55-59. |
| |
| Authors: | DIAO Caozheng LIU Jinying HE Duohui JIA Qika XU Hongliang |
| |
| Abstract: | A numerical simulation code is written to provide spontaneous emission results, which include the effect of the beam emittance and energy spread. Statistical averaging is carried out by weighted averaging of the initial eletron moments and energy distribution. The measured magnetic field values are adopted to calculate (the influence of the transverse position is considered). The spontaneous emission results of the beams with different emittance and energy spread are presented. The influence of the emittance, energy spread, off axis and oblique axis on the modulation rate is discussed. |
| |
| Keywords: | spontaneous emission modulation rate numerical simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
