
Accession Number : AD0287753
Title : HELICAL INSTABILITIES IN SOLIDSTATE PLASMA
Corporate Author : BOEING CO SEATTLE WASH
Personal Author(s) : HOLTER,OIVIN
Report Date : SEP 1962
Pagination or Media Count : 1
Abstract : The background of thermal carriers is included in a theory for helical instabilities in electronhole plasmas. The theory applies to any injection level in intrinsic, ntype, and ptype semiconductors and to insulators. Given the temperature dependence of the mobilities, one can determine the plasma temperature from the electric field at the onset of instability. The n the frequency of the instability can be calculated. A comparison with AnckerJohnson's experiment in pInSb shows that the calculated frequencies are within 20% of the experimental values for high magnetic fields, and are a factor circa 2 smaller for low fields. The calculated plasma temperature reaches the optical phonon energy at an electric field of approximately 55 V/CM, AND REMAINS CLOSE TO THIS TEMPERATURE FOR HIGHER FIELDS. The results of numerical calculations for a number of different materials are given. (Author)
Descriptors : *HELIXES, *MAGNETIC FIELDS, *PERTURBATION THEORY, *PLASMAS(PHYSICS), *SEMICONDUCTORS, *SOLID STATE PHYSICS, TRANSFORMATIONS (MATHEMATICS)
Distribution Statement : APPROVED FOR PUBLIC RELEASE