Order-disorder transition in nanoscopic semiconductor quantum rings

Details Order-disorder transition in nanoscopic semiconductor quantum rings Order-disorder transition in nanoscopic semiconductor quantum rings

2000-08-31

arxiv.org/abs/cond-mat/0008464v2

Phys. Rev. Lett. 86, 3128 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures, For recent information on physics of small systems see http://www.smallsystems.de

Scientific paper

10.1103/PhysRevLett.86.3120

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.

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