Topology of the 3He-A film on corrugated graphene substrate

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)115–118
Number of pages4
JournalJETP Letters
Volume107
Issue number2
Publication statusPublished - Jan 2018
MoE publication typeA1 Journal article-refereed

Researchers

Research units

  • Landau Institute for Theoretical Physics
  • RAS - Pn Lebedev Physics Institute

Abstract

Thin film of superfluid 3He on a corrugated graphene substrate represents topological matter with a smooth disorder. It is possible that the atomically smooth disorder produced by the corrugated graphene does not destroy the superfluidity even in a very thin film, where the system can be considered as quasi two-dimensional topological material. This will allow us to study the effect of disorder on different classes of the 2+1 topological materials: the chiral 3He-A with intrinsic quantum Hall effect and the time reversal invariant planar phase with intrinsic spin quantum Hall effect. In the limit of smooth disorder, the system can be considered as a Chern mosaic–a collection of domains with different values of Chern numbers. In this limit, the quantization of the Hall conductance is determined by the percolated domain, while the density of the fermionic states is determined by the edge modes on the boundaries of the finite domains. This system can be useful for the general consideration of disorder in the topological matter.

ID: 17380319