Accession Number : AD0287753

Title :   HELICAL INSTABILITIES IN SOLID-STATE 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, n-type, and p-type 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 Ancker-Johnson's experiment in p-InSb 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