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

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Landau Institute for Theoretical Physics
  • RAS - P.N. Lebedev Physics Institute

Kuvaus

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.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut115–118
Sivumäärä4
JulkaisuJETP Letters
Vuosikerta107
Numero2
TilaJulkaistu - tammikuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 17380319