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

Here we study the instabilities of a quadratic band crossing system to Cherninsulating states and uncorrelated disorder. We determined the phase diagram inthe plane of topological mass versus disorder strength, characterizing thesystem with respect to spectral, localization and topological properties. Inthe clean limit, the system has two gapped Chern insulating phases with Chernnumbers C=\pm2, and a trivial phase with C=0. For finite disorder, thequadratic band crossing points are unstable to emergent gapless Cherninsulating phases with C=\pm1, not present in the clean limit. These phasesoccupy a considerable region of the phase diagram for intermediate disorder andshow features of topological Anderson insulators: it is possible to reach themthrough disorder-driven transitions from trivial phases.

Instability of QBC systems to Topological Anderson Insulating phases