Abbreviated Journal Title
Phys. Rev. B
FRACTIONALLY OCCUPIED STATES; SELF-INTERACTION CORRECTION; DIMENSIONAL; ELECTRON-GAS; TRANSITION-METAL OXIDES; LANDAU-LEVEL; MAGNETIC-FIELDS; REVERSED SPINS; EDGE CHANNELS; GROUND-STATE; FORMALISM; Physics, Condensed Matter
We have developed an ensemble density-functional theory that includes spin degrees of freedom for non-uniform quantum Hall systems. We have applied this theory using a local-spin-density approximation to study the edge reconstruction of parabolically confined quantum dots. For a Zeeman splitting below a certain critical value, the edge of a completely polarized maximum density droplet reconstructs into a spin-unpolarized structure. For larger Zeeman splittings, the edge remains polarized and develops an exchange hole.
Physical Review B
Lubin, M. I.; Heinonen, O.; and Johnson, M. D., "Spin-ensemble density-functional theory for inhomogeneous quantum Hall systems" (1997). Faculty Bibliography 1990s. 2001.