Disorder-induced coupling of Weyl nodes in WTe$_2$

作者: Bernd Büchner , Christian Hess , Romain Giraud , Joseph Dufouleur , Igor V. Morozov

DOI: 10.1103/PHYSREVRESEARCH.2.033041

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摘要: The finite coupling between Weyl nodes due to residual disorder is investigated by magnetotransport studies in WTe$_2$. anisotropic scattering of quasiparticles evidenced from classical and quantum transport measurements. A new theoretical approach using a real band structure developed calculate the dependence anisotropy with correlation length disorder. comparison theory experiments reveals for first time short WTe$_2$ ($\xi$~nm). This result implies significant other bands, so that inter-node strongly reduces topologically non-trivial properties, such as chiral anomaly.

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