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

The Fermi liquid approach is applied to the problem of spontaneous violationof the four-fold rotational point-group symmetry ($C_4$) in strongly correlatedtwo-dimensional electronic systems on a square lattice. The symmetry breakingis traced to the existence of a topological phase transition. This continuoustransition is triggered when the Fermi line, driven by the quasiparticleinteractions, reaches the van Hove saddle points, where the group velocityvanishes and the density of states becomes singular. An unconventional Fermiliquid emerges beyond the implicated quantum critical point.

Spontaneous breaking of four-fold rotational symmetry in two-dimensional electronic systems explained as a continuous topological transition