Premium
Long‐Wavelength Absorption in Small Metallic Spheres
Author(s) -
Olszewski S.
Publication year - 1993
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221780124
Subject(s) - wavelength , spheres , absorption (acoustics) , metal , electron , free electron model , electromagnetic radiation , attenuation coefficient , materials science , copper , condensed matter physics , atomic physics , physics , molecular physics , optics , quantum mechanics , astronomy , metallurgy
The absorption of electromagnetic waves by the free‐electron gas in a metal can be calculated if the standing‐wave‐like character of the electron wave functions is taken into account. This approach differs from the zero light absorption obtained from the electron wave functions having the cyclic boundary conditions given by Bloch. For long wavelengths the theory is applied to the case of small metallic spheres. For sludges of copper and lead the calculated absorption coefficient at frequencies above 10 12 Hz is found to be quite close to the observed data.