Chiral Landau levels in Weyl semimetal NbAs with multiple topological carriers

Nature Communications
Xiang YuanFaxian Xiu

Abstract

Recently, Weyl semimetals have been experimentally discovered in both inversion-symmetry-breaking and time-reversal-symmetry-breaking crystals. The non-trivial topology in Weyl semimetals can manifest itself with exotic phenomena, which have been extensively investigated by photoemission and transport measurements. Despite the numerous experimental efforts on Fermi arcs and chiral anomaly, the existence of unconventional zeroth Landau levels, as a unique hallmark of Weyl fermions, which is highly related to chiral anomaly, remains elusive owing to the stringent experimental requirements. Here, we report the magneto-optical study of Landau quantization in Weyl semimetal NbAs. High magnetic fields drive the system toward the quantum limit, which leads to the observation of zeroth chiral Landau levels in two inequivalent Weyl nodes. As compared to other Landau levels, the zeroth chiral Landau level exhibits a distinct linear dispersion in magnetic field direction and allows the optical transitions without the limitation of zero z momentum or [Formula: see text] magnetic field evolution. The magnetic field dependence of the zeroth Landau levels further verifies the predicted particle-hole asymmetry of the Weyl cones. Meanwhile, the...Continue Reading

References

Aug 7, 2007·Physical Review Letters·Z JiangH L Stormer
Mar 31, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·N J GhimireF Ronning
May 23, 2015·Physical Review Letters·M OrlitaL W Molenkamp
Jun 13, 2015·Nature Communications·Shin-Ming HuangM Zahid Hasan
Feb 26, 2016·Nature Communications·Cheng-Long ZhangShuang Jia
Mar 18, 2016·Nature Communications·N XuM Shi
Jun 9, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Hongming WengZhong Fang
Aug 23, 2016·Nature Communications·Philip J W MollJames G Analytis
Oct 8, 2016·Physical Review Letters·A AkrapM Orlita
Jan 10, 2017·Nature Communications·Cheng ZhangFaxian Xiu
Jul 26, 2017·Nature Materials·J Y LiuZ Q Mao

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Citations

Jan 13, 2021·Scientific Reports·Ming-Chien HsuShin-Ming Huang
Mar 25, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jing LiHui Pan
Jan 15, 2022·Science Advances·Zhengguang LuB J Ramshaw
Mar 19, 2020··Yuki NakajimaShin-ichi Kimura

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