Universal optical conductivity of a disordered Weyl semimetal

  title={Universal optical conductivity of a disordered Weyl semimetal},
  author={Bitan Roy and Vladimir Juri{\vc}i{\'c} and Sankar Das Sarma},
  journal={Scientific Reports},
Topological Weyl semimetals, besides manifesting chiral anomaly, can also accommodate a disorder-driven unconventional quantum phase transition into a metallic phase. A fundamentally and practically important question in this regard concerns an experimentally measurable quantity that can clearly distinguish these two phases. We show that the optical conductivity while serving this purpose can also play the role of a bonafide order parameter across such disorder-driven semimetal-metal quantum… 
Multifractality at the Weyl-semimetal–diffusive-metal transition for generic disorder
A Weyl semimetal is a three dimensional topological gapless phase. In the presence of strong enough disorder it undergoes a quantum transition towards a diffusive metal phase whose universality class
A generic phase between disordered Weyl semimetal and diffusive metal
  • Ying Su, X. S. Wang, X. R. Wang
  • Physics, Medicine
    Scientific Reports
  • 2017
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