Weyl Fermion (IMAGE)

Princeton University

Weyl Fermion

Caption

This is a data image (ARPES measurements) showing electron distributions in a Weyl fermion material TaAs. (Left) Surface motion of Weyl electrons are seen in a crescent-shaped Fermi surface (Fermi arc) in the data. (Right) Weyl fermionic electrons disperse like light (inverted "V" shaped, linear) in the bulk of the material.

Credit

Su-Yang Xu and M. Zahid Hasan, Princeton University

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