Accession Number : AD0692592

Title :   COMPLEX ZEROS OF A TRANSCENDENTAL IMPEDANCE FUNCTION.

Descriptive Note : Technical publication,

Corporate Author : NORGES TEKNISKE HOEGSKOLE TRONDHEIM ELECTRONICS RESEARCH LAB

Personal Author(s) : Falnes,J.

Report Date : 17 OCT 1967

Pagination or Media Count : 15

Abstract : The electrical impedance of a semiconductor supporting two waves contains an entire transcendental function of the form f(z)=exp(-z)-1-cz, where c is a complex parameter. This function has an infinity of zeros in the left half z-plane when c is finite (0</c/<+ infinity). Several approximate expressions for the location of zeros as function of c are obtained. For certain values of c one or several zeros are located in the right half z-plane. The real part of some of those exceeds an arbitrarily large positive number, provided c is properly chosen. This corresponds to resonances which represent growing oscillations. (Author)

Descriptors :   (*SEMICONDUCTORS, ELECTRICAL IMPEDANCE), RESONANT FREQUENCY, COMPLEX VARIABLES, TRANSCENDENTAL FUNCTIONS, STABILITY, NORWAY

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE