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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

While the optical properties of the superconducting salt$\alpha$-(BEDT-TTF)$_2$NH$_4$Hg(SCN)$_4$ remain metallic down to 2 K, in thenon-superconducting K-analog a pseudogap develops at frequencies of about 200cm$^{-1}$ for temperatures T < 200 K. Based on exact diagonalisationcalculations on an extended Hubbard model at quarter-filling we argue thatfluctuations associated with short range charge ordering are responsible forthe observed low-frequency feature. The different ground states, includingsuperconductivity, are a consequence of the proximity of these compounds to aquantum phase charge-ordering transition driven by the intermolecular Coulombrepulsion.Comment: 4 pages, 3 figure

physical review letters

Proximity of the Layered Organic Conductors<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi><mml:mtext mathvariant="normal">−</mml:mtext><mml:mo stretchy="false">(</mml:mo><mml:mi mathvariant="normal">B</mml:mi><mml:mi mathvariant="normal">E</mml:mi><mml:mi mathvariant="normal">D</mml:mi><mml:mi mathvariant="normal">T</mml:mi><mml:mtext mathvariant="normal">−</mml:mtext><mml:mi mathvariant="normal">T</mml:mi><mml:mi mathvariant="normal">T</mml:mi><mml:…

Proximity of the Layered Organic Conductorsα−(BEDT−TT