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Surface Fermi arc connectivity in the type-II Weyl semimetal candidate WTe
J. Sánchez-Barriga, M. G. Vergniory, D. Evtushinsky +4
We perform ultrahigh resolution angle-resolved photoemission experiments at a temperature T=0.8 K on the type-II Weyl semimetal candidate WTe. We find a surface Fermi arc con…
Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
Barry Bradlyn, Jennifer Cano, Zhijun Wang +4
In quantum field theory, we learn that fermions come in three varieties: Majorana, Weyl, and Dirac. Here we show that in solid state systems this classification is incomplete and f…
Time-Reversal-Breaking Weyl Fermions in Magnetic Heusler Alloys
Zhijun Wang, M. G. Vergniory, S. Kushwaha +6
Weyl fermions have recently been observed in several time-reversal-invariant semimetals and photonics materials with broken inversion symmetry. These systems are expected to have e…