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arXiv · 1309.2771

Spin textures of strongly correlated spin Hall quantum dots

G. Dolcetto·N. Traverso Ziani·M. Biggio·F. Cavaliere·M. Sassetti
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Abstract

We study the spin ordering of a quantum dot defined via magnetic barriers in an interacting quantum spin Hall edge. The spin-resolved density-density correlation functions are computed. We show that strong electron interactions induce a ground state with a highly correlated spin pattern. The crossover from the liquid-type correlations at weak interactions to the ground state spin texture found at strong interactions parallels the formation of a one-dimensional Wigner molecule in an ordinary strongly interacting quantum dot.

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G. Dolcetto, N. Traverso Ziani, M. Biggio, F. Cavaliere, M. Sassetti. 2013-09-11. Spin textures of strongly correlated spin Hall quantum dots. https://doi.org/10.1002/pssr.201308064

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