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Stability of the maximum density droplet in quantum dots at high magnetic fields

1998/10/14 by Tjerk H. Oosterkamp, T. H. Oosterkamp, Oosterkamp, T. H. +11
Engineering · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #Semiconductor materials and devices #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.cond-mat/9810159

8 pages, submitted to Phys. Rev. Lett

arxiv created 1998/10/14 · openalex publication_date 1998/10/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have measured electron transport through a vertical quantum dot containing a tunable number of electrons between 0 and 40. Over some region in magnetic field the electrons are spin polarized and occupy successive angular momentum states, i.e. the maximum density droplet (MDD) state. The stability region where the MDD state is the ground state, decreases for increasing electron number. The instability of the MDD is accompanied by a redistribution of charge which increases the area of the electron droplet.

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