Fermi Surface of Indium from Magnetoacoustic Measurements

Abstract

Magnetoacoustic measurements have been made at 91 Mc/sec on single-crystal specimens of indium. From the observed oscillatory behavior, the dimensions of the Fermi surface of indium have been obtained. The second-zone surface agrees very well with that predicted from the nearly free electron model, apart from a general reduction of about ten percent in all dimensions. Poorer agreement is found for the third-zone surface. The high-field attenuation for each propagation direction studied reached a saturation value, indicating an absence of open orbits in these directions.