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 symmetry of the pairing state in iron pnictide superconductor$\mathrm{Ba_{1-x}K_xFe_2As_2}$ is still controversial. At optimal doping ($x\approx 0.4$), it is very likely $s$-wave, but for $x=1$ there are experimentaland theoretical arguments for both $s$-wave and $d$-wave. Depending on thechoice for $x=1$, intermediate $s+is$ and $s+id$ states have been proposed forintermediate doping $ 0.4 < x < 1$. In both states, the time reversal symmetryis broken and a spontaneous magnetization is allowed. In this work we study aspontaneous magnetization induced by a nonmagnetic defect in the $s+is$ and$s+id$ states by using a perturbation theory and numerical calculations for theGinzburg-Landau free energy functional. We show that the angular dependence ofthe magnetization is distinct in these two states due to the difference insymmetry properties of the order parameters. Our results indicate a possibleway to distinguish between the $s+is$ and $s+id$ pairing symmetries inmulti-band superconductors.

physical review. b./physical review. b

Distinguishing between $s+id$ and $s+is$ pairing symmetries in multiband  superconductors through spontaneous magnetization pattern induced by a defect