OPTICAL PROPERTIES OF AG AND CU
OPTICAL PROPERTIES OF AG AND CU
复制标题
DOI：
10.1103/physrev.128.1622
复制
发表时间：
1962-01-01
期刊：
影响因子：
--
通讯作者：
PHILIPP, HR
中科院分区：
文献类型：
--
作者：
EHRENREICH, H;PHILIPP, HR
从自由电子效应、带间跃迁和集体振荡三个基本物理过程讨论了Ag和Cu在25 eV范围内的光学常数的实验数据。色散理论是用来获得一个准确的估计的平均光学质量的特征的自由电子的行为在整个能量范围内低于带间跃迁的发病。Ag的m a= 1.03±0.06，Cu的m a = 1.42±0.05。带间跃迁到11 eV的初步确定使用Segall的带计算。等离子体共振涉及的导带和d电子的物理识别和描述。
Experimental data for the optical constants of Ag and Cu extending to 25 eV are discussed in terms of three fundamental physical processes:(1) free-electron effects,(2) interband transitions, and (3) collective oscillations. Dispersion theory is used to obtain an accurate estimate of the average optical mass characterizing the free-electron behavior over the entire energy range below the onset of interband transitions. The values are m a= 1.03±0.06 for Ag and 1.42±0.05 for Cu. The interband transitions to 11 eV are identified tentatively using Segall's band calculations. Plasma resonances involving both the conduction band and d electrons are identified and described physically.