Acoustic Cyclotron Resonance and Giant High Frequency Magnetoacoustic Oscillations in Metals with Locally Flattened Fermi Surface

Abstract

We consider the effect of local flattening on the Fermi surface (FS) of a metal upon geometric oscillations of the velocity and attenuation of ultrasonic waves in the neighborhood of the acoustic cyclotron resonance. It is shown that such peculiarities of the local geometry of the FS can lead to a significant enhancement of both cyclotron resonance and geometric oscillations. Characteristic features of the coupling of ultrasound to shortwave cyclotron waves arising due to the local flattening of the FS are analyzed. PACS numbers 71.18.+y; 72.15.Gd; 72.15.-v

8 pages, 3 figures, text revised

Cited by in corpus (4)

• Quantum Oscillations of Elastic Moduli and Softening of Phonon Modes in Metals
• Local Geometry of the Fermi Surface and the Cyclotron Resonance in Metals in a Normal Magnetic Field
• Local Flattening of the Fermi Surface and Quantum Oscillations in the Magnetoacoustic Response of a Metal
• Local Geometry of the Fermi Surface and Quantum Oscillations in the Linear Response of Metals