Author:
Schieck R.,Hartmann A.,Fiechter S.,Könenkamp R.,Wetzel H.
Abstract
We have prepared a series of syntheticn-type pyrite (FeS2) crystals by chemical vapor transport and high temperature solution growth. These and natural crystals were characterized with respect to Hall mobility, carrier concentration, and conductivity, and chemically analyzed by mass spectroscopy and atomic emission spectroscopy. The results are compared in detail to previous work on natural crystals. Conductivity and carrier concentration in our measurements varied between 0.05 and 3.5 (Ω cm)−1and between 6.9·1015and 5.4·1017cm−3, respectively. The peak mobilities have values ranging from 100 to 2000 cm2/Vs. We find that sulfur deficiency and a number of impurity elements, such as Si, Cu, and Al, can qualitatively account for the trends in the electronic properties.
Publisher
Springer Science and Business Media LLC
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference22 articles.
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3. Photoconductivity of Natural Pyrite (FeS2)
4. Electrical Properties of Natural Pyrite between 1.3 and 700°K
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