Home > Research > Publications & Outputs > Importance of interband transitions for the fra...

Electronic data

  • E201415

    Rights statement: ©2012 American Physical Society

    Final published version, 305 KB, PDF document


Text available via DOI:

View graph of relations

Importance of interband transitions for the fractional quantum Hall effect in bilayer graphene

Research output: Contribution to journalJournal article

Article number201415
<mark>Journal publication date</mark>29/05/2012
<mark>Journal</mark>Physical review B
Issue number20
Number of pages4
Publication statusPublished
Original languageEnglish


Several recent works have proposed that electron-electron interactions in bilayer graphene can be tuned with the help of external parameters, making it possible to stabilize different fractional quantum Hall states. In these prior works, phase diagrams were calculated based on a single Landau level approximation. We go beyond this approximation and investigate the influence of polarization effects and virtual interband transitions on the stability of fractional quantum Hall states in bilayer graphene. We find that for realistic values of the dielectric constant, the phase diagram is strongly modified by these effects. We illustrate this by evaluating the region of stability of the Pfaffian state.

Bibliographic note

©2012 American Physical Society