Strong anisotropy of electron-phonon interaction in NbP probed by magnetoacoustic quantum oscillations
Other Condensed Matter
2020-11-02 v2 Materials Science
Abstract
In this study, we report on the observation of de Haas-van Alphen-type quantum oscillations (QO) in the ultrasound velocity of NbP as well as `giant QO' in the ultrasound attenuation in pulsed magnetic fields. The difference of the QO amplitude for different acoustic modes reveals a strong anisotropy of the effective deformation potential, which we estimate to be as high as for certain parts of the Fermi surface. Furthermore, the natural filtering of QO frequencies and the tracing of the individual Landau levels to the quantum limit allows for a more detailed investigation of the Fermi surface of NbP as was previously achieved by means of analyzing QO observed in magnetization or electrical resistivity.
Keywords
Cite
@article{arxiv.2010.06530,
title = {Strong anisotropy of electron-phonon interaction in NbP probed by magnetoacoustic quantum oscillations},
author = {Clemens Schindler and Denis Gorbunov and Sergei Zherlitsyn and Stanislaw Galeski and Marcus Schmidt and Jochen Wosnitza and Johannes Gooth},
journal= {arXiv preprint arXiv:2010.06530},
year = {2020}
}
Comments
5 figures