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

We analyze the spin anisotropy of the magnetic susceptibility of Sr$_2$RuO$4$in presence of spin-orbit coupling and anisotropic strain usingquasi-two-dimensional tight-binding parametrization fitted to the ARPESresults. Similar to the previous observations we find the in-plane polarizationof the low ${\bf q}$ magnetic fluctuations and the out-of-plane polarization ofthe incommensurate magnetic fluctuation at the nesting wave vector ${\bf Q}_1 =(2/3 \pi ,2/3 \pi)$ but also nearly isotropic fluctuations near ${\bfQ}_2=(\pi/6,\pi/6)$. Furthermore, one finds that apart from the high-symmetrydirection of the tetragonal Brillouin zone the magnetic anisotropy is maximal,i.e. $\chi^{xx} \neq \chi^{yy} \neq \chi^{zz}$. This is the consequence of theorbital anisotropy of the $xz$ and $yz$ orbitals in the momentum space. We alsostudy how the magnetic anisotropy evolves in the presence of the strain andfind strong Ising-like ferromagnetic fluctuations near the Lifshitz transitionfor the $xy$-band.

Anisotropic spin fluctuations in Sr$_2$RuO$_4$: role of spin-orbit coupling and induced strain