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Order-disorder transition in nanoscopic semiconductor quantum rings

Peter Borrmann·Jens Harting
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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.

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Peter Borrmann, Jens Harting. 2001-04-02. Order-disorder transition in nanoscopic semiconductor quantum rings. https://doi.org/10.1103/physrevlett.86.3120

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