@article{7fe33e29701b464f9cb3a0327741145e,
title = "Prediction of an arc-tunable Weyl Fermion metallic state in MoxW1-xTe2",
abstract = "A Weyl semimetal is a new state of matter that hosts Weyl fermions as emergent quasiparticles. The Weyl fermions correspond to isolated points of bulk band degeneracy, Weyl nodes, which are connected only through the crystal's boundary by exotic Fermi arcs. The length of the Fermi arc gives a measure of the topological strength, because the only way to destroy the Weyl nodes is to annihilate them in pairs in the reciprocal space. To date, Weyl semimetals are only realized in the TaAs class. Here, we propose a tunable Weyl state in MoxW1-xTe2 where Weyl nodes are formed by touching points between metallic pockets. We show that the Fermi arc length can be changed as a function of Mo concentration, thus tuning the topological strength. Our results provide an experimentally feasible route to realizing Weyl physics in the layered compound MoxW1-xTe2, where non-saturating magneto-resistance and pressure-driven superconductivity have been observed.",
author = "Chang, {Tay Rong} and Xu, {Su Yang} and Guoqing Chang and Lee, {Chi Cheng} and Huang, {Shin Ming} and Wang, {Bao Kai} and Guang Bian and Hao Zheng and Sanchez, {Daniel S.} and Ilya Belopolski and Nasser Alidoust and Madhab Neupane and Arun Bansil and Jeng, {Horng Tay} and Hsin Lin and {Zahid Hasan}, M.",
note = "Funding Information: Work at Princeton University was supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) under the grant number DE-FG-02-05ER46200. Work at the National University of Singapore were supported by the National Research Foundation (NRF), Prime Ministers Office, Singapore, under its NRF fellowship (NRF award no. NRF-NRFF2013-03). T.-R.C. and H.-T.J. were supported by the National Science Council, Taiwan. H.-T.J. also thanks the National Center for High-Performance Computing, Computer and Information Network Center National Taiwan University, and National Center for Theoretical Sciences, Taiwan, for technical support. The work at Northeastern University was supported by the U.S. DOE/BES grant number DE-FG02-07ER46352, and benefited from the Northeastern University{\textquoteright}s Advanced Scientific Computation Center (ASCC) and the NERSC Supercomputing Center through DOE grant number DE-AC02-05CH11231. Visits to Princeton University by S.M.H., G.C., T.-R.C. and H.L. were funded by the Gordon and Betty Moore Foundations EPiQS Initiative through Grant GBMF4547 (to M.Z.H.). We thank B. Andrei Bernevig, Chen Fang, Shuang Jia and Fengqi Song for discussions or helpful comments on our manuscript. Publisher Copyright: {\textcopyright} 2016, Nature Publishing Group. All rights reserved.",
year = "2016",
month = feb,
day = "15",
doi = "10.1038/ncomms10639",
language = "English (US)",
volume = "7",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
}