High Fermi velocities and small cyclotron masses in LaAlGe

Zhixiang Hu; Qianheng Du; Yu Liu; D. Graf; C. Petrovic

doi:10.1063/5.0035445

High Fermi velocities and small cyclotron masses in LaAlGe

Mesoscale and Nanoscale Physics 2020-12-10 v1 Materials Science

Authors: Zhixiang Hu , Qianheng Du , Yu Liu , D. Graf , C. Petrovic

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report quantum oscillation measurements of LaAlGe, a Lorentz-violating type-II Weyl semimetal with tilted Weyl cones. Very small quasiparticle masses and very high Fermi velocities were detected at the Fermi surface. Whereas three main frequencies have been observed, angular dependence of two Fermi surface sheets indicates possible two-dimensional (2D) character despite the absence of the 2D structural features such as van der Waals bonds. Such conducting states may offer a good platform for low-dimensional polarized spin current in magnetic RAlGe (R = Ce, Pr) materials.

Keywords

quantum oscillations weyl semimetal fermi velocity cyclotron mass laalge

Cite

@article{arxiv.2012.05234,
  title  = {High Fermi velocities and small cyclotron masses in LaAlGe},
  author = {Zhixiang Hu and Qianheng Du and Yu Liu and D. Graf and C. Petrovic},
  journal= {arXiv preprint arXiv:2012.05234},
  year   = {2020}
}

Comments

5 pages, 3 figures

High Fermi velocities and small cyclotron masses in LaAlGe

Abstract

Keywords

Cite

Comments

Related papers