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Observation of Fermi arc spin texture in TaAs by Lv, B. Q.; Muff, S.; Qian, T.; Song, Z. D.; Nie, S. M.; Xu, N.; Richard, P.; Matt, C. E.; Plumb, N. C.; Zhao, L. X.; Chen, G. F.; Fang, Z.; Dai, X.; Dil, J. H.; Mesot, J.; Shi, M.; Weng, H. M.; Ding, H. is a scholarly article available to read on EtoBox.

What is Observation of Fermi arc spin texture in TaAs about?

We have investigated the spin texture of surface Fermi arcs in the recently discovered Weyl semimetal TaAs using spin- and angle-resolved photoemission spectroscopy. The experimental results demonstrate that the Fermi arcs are spin-polarized. The measured spin texture fulfills the requirement of mirror and time reversal symmetries and is well reproduced by our first-principles calculations, which gives strong evidence for the topologically nontrivial Weyl semimetal state in TaAs. The consistency between the experimental and calculated results further confirms the distribution of chirality of the Weyl nodes determined by first-principles calculations.

Author

Lv, B. Q.; Muff, S.; Qian, T.; Song, Z. D.; Nie, S. M.; Xu, N.; Richard, P.; Matt, C. E.; Plumb, N. C.; Zhao, L. X.; Chen, G. F.; Fang, Z.; Dai, X.; Dil, J. H.; Mesot, J.; Shi, M.; Weng, H. M.; Ding, H.

Published

2015

Language

EN