Role of electron correlations in some Weyl systems
2021 ◽
Vol 2122
(1)
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pp. 012002
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Abstract We are discussing a model to understand previously obtained results on Weyl semimetals as realized in MoTe2 using DFT and DFT+U calculations. The model is motivated from general principles and we use it to investigate the effects of Coulomb correlations originating from the localized nature of the Mo-d orbitals. We find that such correlations can eliminate or create pairs of Weyl points as the strength of the Coulomb interaction is varied. The effect of the spin-orbit coupling (SOC) is to split each Weyl point, which is assumed present in the absence of SOC, into pairs of spin-chiral partners.
1976 ◽
Vol 37
(C7)
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pp. C7-104-C7-104
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2001 ◽
Vol 37
(4)
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pp. 2411-2413
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2001 ◽
Vol 115
(20)
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pp. 9243-9254
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2010 ◽
Vol 108
(3)
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pp. 486-494
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