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

Phase diagrams of the two-dimensional one-band t-t' Hubbard model areobtained within the two-patch and the temperature-cutoff many-patchrenormalization group approach. At small t' and at van Hove band fillingsantiferromagnetism dominates, while with increasing t' or changing fillingantiferromagnetism is replaced by d-wave superconductivity. Near t'=t/2 andclose to van Hove band fillings the system is unstable towards ferromagnetism.Away from van Hove band fillings this ferromagnetic instability is replaced bya region with dominating triplet p-wave superconducting correlations. Theresults of the renormalization-group approach are compared with the mean-fieldresults and the results of the T-matrix approximation.Comment: 29 pages, 17 figure

Renormalization group analysis of magnetic and superconducting instabilities near van Hove band fillings