Order-disorder transition in nanoscopic semiconductor quantum rings
Strongly Correlated Electrons
2009-10-31 v2
Abstract
Using the path integral Monte Carlo technique we show that semiconductor quantum rings with up to six electrons exhibit a temperature, ring diameter, and particle number dependent transition between spin ordered and disordered Wigner crystals. Due to the small number of particles the transition extends over a broad temperature range and is clearly identifiable from the electron pair correlation functions.
Cite
@article{arxiv.cond-mat/0008464,
title = {Order-disorder transition in nanoscopic semiconductor quantum rings},
author = {Peter Borrmann and Jens Harting},
journal= {arXiv preprint arXiv:cond-mat/0008464},
year = {2009}
}
Comments
4 pages, 5 figures, For recent information on physics of small systems see http://www.smallsystems.de