Vortex structure in Wigner molecules.

ABSTRACT: We study clusters of vortices for Wigner molecules formed in the laboratory frame induced by anisotropy of the external potential or electron effective mass. For anisotropic systems the ground-state vortex structure undergoes a continuous evolution when the magnetic field is varied in contrast to isotropic systems where it changes rapidly at angular momentum transitions. In fractional quantum Hall conditions the additional vortices first appear on the edges of the confined system far from the axis of a linear Wigner molecule and then approach the electron positions in growing magnetic field. For an isotropic mass the vortices tend to stay at the line perpendicular to the Wigner molecule axis and pass to the axis for the lowest Landau level filling factor of [Formula: see text]. In phosphor

SUBMITTER: Thakur T 

PROVIDER: S-EPMC10272190 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature