Accession Number:

AD0686838

Title:

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

Descriptive Note:

Corporate Author:

MCMASTER UNIV HAMILTON (ONTARIO) DEPT OF PHYSICS

Personal Author(s):

Report Date:

1968-04-03

Pagination or Media Count:

10.0

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

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE