Publication Date:
2017-10-18
Description:
Author(s): D. Rhodes, R. Schönemann, N. Aryal, Q. Zhou, Q. R. Zhang, E. Kampert, Y.-C. Chiu, Y. Lai, Y. Shimura, G. T. McCandless, J. Y. Chan, D. W. Paley, J. Lee, A. D. Finke, J. P. C. Ruff, S. Das, E. Manousakis, and L. Balicas The electronic structure of WTe 2 and of orthorhombic γ -MoTe 2 are theoretically claimed to contain pairs of Weyl type-II points associated with linearly touching electron and hole pockets. A series of recent angle-resolved photoemission spectroscopy (ARPES) experiments claims to observe general agreement with these predictions. Here, the authors report a de Haas–van Alphen study on γ -MoTe 2 which, in contrast to ARPES and predictions, finds a simpler and more isotropic Fermi surface. Upon the guidance of ARPES, they show here that it is possible to explain the observed Fermi surface geometry by an independent displacement of the theoretical electron and hole bands relative to the Fermi level. However, this a d h o c procedure, previously used by a number of groups, suppresses the crossings between electron and hole bands and hence the predicted Weyl type-II points. [Phys. Rev. B 96, 165134] Published Tue Oct 17, 2017
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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