International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

© International Union of Crystallography 2006
International Tables for Crystallography (2006). Vol. C. ch. 4.3, p. 398

Table 4.3.4.3 

C. Colliexa

Table 4.3.4.3 | top | pdf |
Experimental and theoretical values for the coefficient α in the plasmon dispersion curve together with estimates of the cut-off wavevector (from Raether, 1980[link])

  Measured α Calculated α [q_c] (Å−1)
Li 0.24 0.35 0.9
Na 0.24 0.32 0.8
K 0.14 0.29 0.8
Mg 0.35 0.39 1.0
Al 0.2 (< 0.5 Å−1)    
0.45 (> 0.5 Å−1) 0.43 1.3
In 0.40 (< 0.5 Å−1)    
0.66 (> 0.5 Å−1)    
Si 0.41    
0.3 0.45 1.1