Accession Number : AD0686838

Title :   A STUDY OF MAGNETOTHERMAL AND SHUBNIKOV - DE HAAS OSCILLATIONS IN ARSENIC,

Corporate Author : MCMASTER UNIV HAMILTON (ONTARIO) DEPT OF PHYSICS

Personal Author(s) : Vanderkooy,J. ; Datars,W. R.

Report Date : 03 APR 1968

Pagination or Media Count : 10

Abstract : Magnetothermal and Shubnikov - de Haas oscillations were observed in arsenic. The periods of the oscillations are in agreement with those from recent de Haas - van Alphen experiments that support the Lin-Falicov model of the arsenic Fermi surface. The ratio of oscillatory and non-oscillatory resistivities is of the magnitude predicted by Adams-Holstein theory. It is shown that, for the same sample material, the Dingle temperature of the Shubnikov - de Haas effect is larger than the corresponding temperature of the de Haas - van Alphen effect. The long-period oscillation is not observed in the Shubnikov - de Haas effect. Factors that could attenuate the long-period oscillation are considered. Variations in temperature in the magnetothermal effect are compared to calculated values determined from the amplitude of the de Haas - van Alphen torque oscillations. (Author)

Descriptors :   (*ARSENIC, MAGNETIC PROPERTIES), ELECTRICAL CONDUCTIVITY, BAND THEORY OF SOLIDS, OSCILLATION, TEMPERATURE, MAGNETIC FIELDS, CANADA

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE