Oscillatory tilt effect in a metal in a weak magnetic field

TL;DR

This paper reports the discovery of an oscillatory tilt effect in a normal metal, characterized by ultrasound attenuation oscillations in a magnetic field, revealing details about the Fermi surface and electron velocity in high purity Gallium.

Contribution

The study experimentally demonstrates the oscillatory tilt effect in a metal and measures Fermi surface dimensions and electron velocities, including an inverse effect at low ultrasonic frequencies.

Findings

Oscillatory tilt effect observed in a normal metal.

Fermi surface cross-section dimensions determined.

Inverse oscillatory tilt effect detected at low frequencies.

Abstract

The oscillatory tilt effect in a normal metal at external magnetic field is discovered. The oscillatory tilt effect is characterized by the oscillations of ultrasound attenuation in a metal at external magnetic field as predicted in [1]. The dimension of the non-central cross-section of the Fermi surface and the velocity of electrons in a high pure Gallium single crystal at external magnetic field are found. At the low frequencies of ultrasonic signal, the "inverse" oscillatory tilt effect in a high pure Gallium single crystal at the external magnetic field is observed.