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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The properties of correlated electron materials are often intricately linkedto Van Hove singularities (VHs) in the vicinity of the Fermi energy. The classof these VHs is of great importance, with higher order ones -- with power-lawdivergence in the density of states -- leaving frequently distinct signaturesin physical properties. We use a new theoretical method to detect and analysehigher order Van Hove singularities (HOVHs) in two-dimensional materials andapply it to the electronic structure of the surface layer of Sr$_2$RuO$_4$. Wethen constrain a low energy model of the VHs of the surface layer ofSr$_2$RuO$_4$ against angle-resolved photoemission spectroscopy andquasiparticle interference data to analyse the VHs near the Fermi level. Weshow how these VHs can be engineered into HOVHs.

Engineering higher order Van Hove singularities in two dimensions: the example of the surface layer of Sr$_2$RuO$_4$