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Observation of Fermi arc spin texture in TaAs
B. Q. Lv, S. Muff, T. Qian +15
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 experiment…
Observation of Weyl nodes and Fermi arcs in TaP
N. Xu, H. M. Weng, B. Q. Lv +18
A Weyl semimetal possesses spin-polarized band-crossings, called Weyl nodes, connected by topological surface arcs. The low-energy excitations near the crossing points behave the s…
Topological nature of FeSeTe superconductor
Zhijun Wang, P. Zhang, Gang Xu +10
We demonstrate, using first-principles calculations, that the electronic structure of FeSeTe (=0.5) is topologically non-trivial, characterized by an odd $\mathbb…
Raman study of lattice dynamics in Weyl semimetal TaAs
H. W. Liu, P. Richard, Z. D. Song +4
We report a polarized Raman study of Weyl semimetal TaAs. We observe all the optical phonons, with energies and symmetries consistent with our first-principles calculations. We det…
Observation of Weyl nodes in TaAs
B. Q. Lv, N. Xu, H. M. Weng +14
In 1929, H. Weyl proposed that the massless solution of Dirac equation represents a pair of new type particles, the so-called Weyl fermions [1]. However the existence of them in pa…
Raman scattering investigation of large positive magnetoresistance material WTe
W. -D. Kong, S. -F. Wu, P. Richard +5
We have performed polarized Raman scattering measurements on WTe, for which an extremely large positive magnetoresistance has been reported recently. We observe 5 A phonon…