Spatial ordering of charge and spin in quasi one-dimensional Wigner molecules

Details Spatial ordering of charge and spin in quasi one-dimensional Wigner molecules Spatial ordering of charge and spin in quasi one-dimensional Wigner molecules

2004-05-16

arxiv.org/abs/cond-mat/0405350v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

to appear in PRB in June 2004

Scientific paper

10.1103/PhysRevB.70.035401

ew-electron systems confined in quasi one-dimensional quantum dots are studied by the configuration interaction approach. We consider the parity symmetry of states forming Wigner molecules in large quantum dots and find that for the spin-polarized Wigner molecules it strictly depends on the number of electrons. We investigate the spatial spin-ordering in the inner coordinates of the quantum system and conclude that for small dots it has a short-range character and results mainly from the Pauli exclusion principle while the Wigner crystallization in large dots is accompanied by spin ordering over the entire length of the dot.

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