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DIELECTRIC CONSTANT OF GERMANIUM AS A FUNCTION OF FREQUENCY, TEMPERATURE, AND RESISTIVITY
ARMY ELECTRONICS COMMAND FORT MONMOUTH NJ
The use of semiconductors in electronics has increased tremendously during the last decade and this growth will continue. One of the most important characteristics of semiconductors is the dielectric constant which determines their electrical behavior. Measurements of the dielectric constant have been made on p- and n- type germanium of various resistivities 20, 10, and 12 ohm- cm. At the same time the dielectric constant has been found to decrease with lower temperatures down to 78K. Similarly, the dielectric constant has been measured at various frequencies and was found to decrease with increasing frequency. At very low resistivity 12 ohm-cm some anomalous behavior is found which is due to the fact that the material is no longer really a semiconductor, but begins to act as a conductor.
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