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

Motivated from the experimental observation of metal induced gap states(MIGS) at insulator/metal interfaces by Kiguchi {\it et al.} [Phys. Rev. Lett.{\bf 90}, 196803 (2003)], we have theoretically investigated the electronicproperties of MIGS at interfaces between various alkali halides and a metalrepresented by a jellium with the first-principles density functional method.We have found that, on top of the usual evanescent state, MIGS generally have along tail on halogen sites with a $p_z$-like character, whose penetration depth($\lambda$) is as large as half the lattice constant of bulk alkali halides.This implies that $\lambda$, while little dependent on the carrier density inthe jellium, is dominated by the lattice constant (hence by energy gap) of thealkali halide, where $\lambda_{\rm LiF} < \lambda_{\rm LiCl} < \lambda_{\rmLiI}$. We also propose a possibility of the MIGS working favorably for theexciton-mediated superconductivity.Comment: 7 pages, 9 figure

physical review. b, condensed matter and materials physics

Electronic properties of metal-induced gap states at insulator/metal interfaces: Dependence on the alkali halide and the possibility of excitonic mechanism of superconductivity