Abbreviated Journal Title
Phys. Rev. B
2-Dimensional Electron-Gas; Landau-Level; Ground-State; Skyrmions; Excitations; Magnetism; Integer; Wells; Nu=1; Physics; Condensed Matter
We extend our ensemble density-functional approach to quantum Hall systems to include noncollinear spins to study charge-spin textures in inhomogeneous quantum Hall systems. We have studied the edge reconstruction in quantum dots at unit bulk filling factor and at 1/3 bulk filling factor as a function of the stiffness of an external confining potential. For soft enough edges, these systems reconstruct to a state in which the electron spins rotate gently as the edge is approached, with a nontrivial spin-charge texture at the edge of the system.
Physical Review B
Heinonen, O.; Kinaret, J. M.; and Johnson, M. D., "Ensemble density-functional approach to charge-spin textures in inhomogeneous quantum Hall systems" (1999). Faculty Bibliography 1990s. 2672.