English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Many-electron systems confined to a quasi-1D geometry by a cylindricaldistribution of positive charge have been investigated by density functionalcomputations in the unrestricted local spin density approximation. Ourinvestigations have been focused on the low density regime, in which electronsare localised. The results reveal a wide variety of different charge and spinconfigurations, including linear and zig-zag chains, single and double-strandhelices, and twisted chains of dimers. The spin-spin coupling turns from weaklyanti-ferromagnetic at relatively high density, to weakly ferromagnetic at thelowest densities considered in our computations. The stability of linear chainsof localised charge has been investigated by analysing the radial dependence ofthe self-consistent potential and by computing the dispersion relation oflow-energy harmonic excitations.

Structural changes in quasi- 1D many-electron systems: from linear to zig-zag and beyond