Publication Date:
2017-06-02
Description:
Author(s): J. H. Pixley, Yang-Zhi Chou, Pallab Goswami, David A. Huse, Rahul Nandkishore, Leo Radzihovsky, and S. Das Sarma The authors determine the fate of single-particle Weyl excitations in the presence of short-range disorder. Using analytic and numerical methods, the authors show that weakly disordered Weyl excitations are not ballistic and acquire an exponentially small but nonzero quasiparticle lifetime due to rare regions of the random disorder potential. As a result, the Green function near the Weyl quasiparticle peaks remains analytic and the avoided quantum critical point renormalizes the single-particle excitation spectrum at finite momentum. [Phys. Rev. B 95, 235101] Published Thu Jun 01, 2017
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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