DETERMINATION OF THE EFFECTIVE DIELECTRIC FUNCTION OF SILVER POWDERS PRODUCED BY INERT-GAS EVAPORATION

被引：12
|
作者：
EICKHOFF, T [1 ]
GROSSE, P [1 ]
HENKEL, S [1 ]
THEISS, W [1 ]
机构：
[1] RHEIN WESTFAL TH AACHEN, INST PHYS 1, W-5100 AACHEN, GERMANY
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 88卷 / 01期
关键词：
D O I：
10.1007/BF01573833
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Silver powder samples were prepared by evaporation of silver in an inert gas atmosphere. They were investigated by de-conductivity-, reflectance- and photoacoustic (PAS) measurements. Model spectra based on the Bergman ansatz for the effective dielectric function epsilon(eff), the effective thermal and electrical conductivities lambda(eff), and sigma(eff), were fitted to the experiments. Good agreement has been found assuming a spongily packed, only weakly percolating topology and an increased damping of the free carriers in the small particles (classical size effect).
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页码：17 / 23
页数：7
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