6533b85cfe1ef96bd12bc193

RESEARCH PRODUCT

Quantum Dots in Magnetic Fields: Phase Diagram and Broken Symmetry at the Maximum-Density-Droplet Edge

B. MottelsonM. ManninenStephanie ReimannM. Koskinen

subject

PhysicsCondensed matter physicsInternal symmetryQuantum dotGeneral Physics and AstronomyCharge densityMaximum densitySymmetry breakingPolarization (waves)Magnetic fieldPhase diagram

description

Quantum dots in magnetic fields are studied within the current spin-density-functional formalism avoiding any spatial symmetry restrictions of the solutions. We find that the maximum-density droplet reconstructs into states with broken internal symmetry: The Chamon-Wen edge coexists with a modulation of the charge density along the edge. The phase boundaries between the polarization transition, the maximum-density droplet, and its reconstruction are in agreement with recent experimental results.

yearjournalcountryeditionlanguage
1999-10-18
http://www.scopus.com/inward/record.url?eid=2-s2.0-0001028837&partnerID=MN8TOARS