Journal
PHYSICAL REVIEW B
Volume 94, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.94.085127
Keywords
-
Funding
- U.S. DOE/BES [DE-FG-02-05ER46200]
- US National Science Foundation GRFP
- Japan Society for the Promotion of Science [KAKENHI 26800165]
- U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division
- U.S. Department of Energy [DE-AC02-07CH11358]
- University of Central Florida
- National Key Projects for Basic Research of China [2013CB922100, 2011CB922103]
- National Natural Science Foundation of China [91421109, 11522432, 21571097]
- Singapore National Research Foundation (NRF) under NRF RF Award [NRF-RF2013-08]
- Nanyang Technological University [M4081137.070]
- National Science Council, Taiwan
- Singapore NRF [NRF-NRFF2013-03]
- Grants-in-Aid for Scientific Research [26800165] Funding Source: KAKEN
Ask authors/readers for more resources
It has recently been proposed that electronic band structures in crystals can give rise to a previously overlooked type of Weyl fermion, which violates Lorentz invariance and, consequently, is forbidden in particle physics. It was further predicted that MoxW1-xTe2 may realize such a type-II Weyl fermion. Here, we first show theoretically that it is crucial to access the band structure above the Fermi level epsilon(F) to show a Weyl semimetal in MoxW1-xTe2. Then, we study MoxW1-xTe2 by pump-probe ARPES and we directly access the band structure > 0.2 eV above epsilon(F) in experiment. By comparing our results with ab initio calculations, we conclude that we directly observe the surface state containing the topological Fermi arc. We propose that a future study of MoxW1-xTe2 by pump-probe ARPES may directly pinpoint the Fermi arc. Our work sets the stage for the experimental discovery of the first type-II Weyl semimetal in MoxW1-xTe2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available