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/

Zendy Plus

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

Zendy Tools

Zendy Open

In nonsuperconducting, metallic paramagnetic SrCo2As2, inelastic neutronscattering measurements have revealed strong stripe-type $\chi$(q) = ($\pi$,0)antiferromagnetic (AFM) spin correlations. Here, using nuclear magneticresonance (NMR) measurements on 59Co and 75As nuclei, we demonstrate thatstronger ferromagnetic (FM) spin correlations coexist in SrCo2As2. Our NMR dataare consistent with density functional theory (DFT) calculations which showenhancements at both q = ($\pi$,0) and the in-plane FM q = 0 wavevectors instatic magnetic susceptibility $\chi$(q). We suggest that the strong FMfluctuations prevent superconductivity in SrCo2As2, despite the presence ofstripe-type AFM fluctuations. Furthermore, since DFT calculations haveconsistently revealed similar enhancements of the $\chi$(q) at both q =($\pi$,0) and q = 0 in the iron-based superconductors and parent compounds, ourobservation of FM correlations in SrCo2As2 calls for detailed studies of FMcorrelations in the iron-based superconductors.

Coexistence of antiferromagnetic and ferromagnetic spin correlations in SrCo2As2 revealed by 59Co and 75As NMR