The far-infrared absorption by small metallic particles

2000 ◽  
Vol 78 (2) ◽  
pp. 113-118 ◽  
Author(s):  
Xiaohui Cao
Keyword(s):  
Infrared Absorption ◽  
Strong Influence ◽  
Far Infrared ◽  
Shape Distribution ◽  
Metallic Particles

In analyzing the effect of the size, coating, and shape of small metallic particles on the far-infrared absorption, we find that size and coating do not alter the far-infrared absorption noticeably, but shape has a strong influence on it. When there is a shape (or effective shape) distribution, an anomalous enhancement of the far-infrared absorption can result. PACS No.: 61.46+w, 36.40Rr

Far-infrared absorption in small metallic particles

1975 ◽  
Vol 11 (4) ◽  
pp. 1330-1341 ◽  
Author(s):  
D. B. Tanner ◽  
A. J. Sievers ◽  
R. A. Buhrman
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Metallic Particles

Far-infrared absorption in small metallic particles

1977 ◽  
Vol 83 (2) ◽  
pp. 377-382 ◽  
Author(s):  
V. V. Maksimenko ◽  
A. J. Simokov ◽  
A. A. Lushnikov
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Metallic Particles

Theory of far-infrared absorption by small metallic particles

1978 ◽  
Vol 18 (6) ◽  
pp. 2490-2493 ◽  
Author(s):  
Arnold J. Glick ◽  
Ellen D. Yorke
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Metallic Particles

Infrared Absorption by Granular Metals

1990 ◽  
Vol 195 ◽  
Author(s):  
D.B. Tanner ◽  
Y.H. Kim ◽  
C.L. Carr
Keyword(s):  
Infrared Absorption ◽  
Electric Dipole ◽  
Low Frequency ◽  
Far Infrared ◽  
Percolation Transition ◽  
Metallic Particles ◽  
Tenfold Increase ◽  
Normal Metals ◽  
Theoretical Predictions ◽  
The Individual

ABSTRACTThe infrared properties of granular metals and superconductors are qualitatively in accord with effective medium ideas, with insulating behavior below a percolation transition and metallic response above. An exception is the far-infrared absorption at low metallic concentrations, which is much stronger than theoretical predictions. Measurements of superconductors and of normal metals in different hosts suggest that this absorption is predominately electric dipole rather than the magnetic dipole (eddy current) absorption which is expected to be the dominant low-frequency loss in highly conducting particles. Measurements of clustered and non-clustered samples suggest that the strong far-infrared absorption does not arise from the clustering together of the individual metallic particles, although clustering does lead to about a tenfold increase in absorption.

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