Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems

Details Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems

1997-12-15

arxiv.org/abs/cond-mat/9712168v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

26 pages (revtex), 5 eps figures, submitted to Phys Rev B

Scientific paper

We extend our ensemble density functional approach to quantum Hall systems to include non-collinear 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 non-trivial spin-charge texture at the edge of the system.

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