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Pressure tuning the Fermi surface topology of the Weyl semimetal NbP

MPG-Autoren
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Yan,  B.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Zitation

dos Reis, R. D., Wu, S. C., Sun, Y., Ajeesh, M. O., Shekhar, C., Schmidt, M., et al. (2016). Pressure tuning the Fermi surface topology of the Weyl semimetal NbP. Physical Review B, 93(20): 205102. doi:10.1103/PhysRevB.93.205102.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002A-D944-D
Zusammenfassung
We report on the pressure evolution of the Fermi surface topology of the Weyl semimetal NbP, probed by Shubnikov-de Haas oscillations in the magnetoresistance combined with ab initio calculations of the band structure. Although we observe a drastic effect on the amplitudes of the quantum oscillations, the frequencies only exhibit a weak pressure dependence up to 2.8 GPa. The pressure-induced variations in the oscillation frequencies are consistent with our band-structure calculations. Furthermore, we can relate the changes in the amplitudes to small modifications in the shape of the Fermi surface. Our findings show evidence of the stability of the electronic band structure of NbP and demonstrate the power of combining quantum-oscillation studies and band-structure calculations to investigate pressure effects on the Fermi surface topology in Weyl semimetals.