Stripe phase ordering as quantum interference phenomenon

Details Stripe phase ordering as quantum interference phenomenon Stripe phase ordering as quantum interference phenomenon

1998-11-29

arxiv.org/abs/cond-mat/9811409v1

Physics

Condensed Matter

12 pages, RevTex, 3 figures (PostScript), submitted to PRL 25th Nov. 1998

Scientific paper

A quantum interference mechanism of the stripe phase instability in quasi one-dimensional (1D) repulsive electron system is proposed. The leading spin-charge coupling term in Landau functional is derived microscopically. It is shown that away from half filling, periodic lattice potential causes cooperative condensation of the spin and charge superlattices, which constitute a 1D analogue of the experimentally observed quasi 2D structures in lanthanum cuprates and nickelates. Renormalization group analysis qualitatively supports the Hartree-Fock picture.

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