2020/10/14 by Clemens Schindler, D. I. Gorbunov, Denis Gorbunov +7
Physics and Astronomy · #Amplitude #Anisotropy #Condensed matter physics #Electron #Fermi surface #Landau quantization #Magnetic field #Magnetization #Phonon #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Quantum optics and atomic interactions #Quantum oscillations #Superconductivity #Topological Materials and Phenomena #cond-mat.mtrl-sci #cond-mat.other
paper · pdf · doi:10.1103/physrevb.102.165156
published as Phys. Rev. B 102, 165156 (2020) · 5 figures
arxiv created 2020/10/14 · openalex publication_date 2020/10/30 · arxiv updated 2020/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this study, we report on the observation of de Haas--van Alphen--type quantum oscillations (QOs) in the ultrasound velocity of NbP as well as ``giant QOs'' in the ultrasound attenuation in pulsed magnetic fields. The difference in the QO amplitude for different acoustic modes reveals a strong anisotropy of the effective deformation potential, which we estimate to be as high as 9\phantom\rule0.16em0exeV 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 QOs observed in magnetization or electrical resistivity.