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

Quantum spin liquids are highly entangled magnetic states with exoticproperties. The $S = 1/2$ square-lattice Heisenberg model is one of thefoundational models in frustrated magnetism with a predicted, but neverobserved, quantum spin liquid state. Isostructural double perovskitesSr$_2$CuTeO$_6$ and Sr$_2$CuWO$_6$ are physical realizations of this model, buthave distinctly different types magnetic order and interactions due to a$d^{10}/d^0$ effect. Long-range magnetic order is suppressed in the solidsolution Sr$_2$CuTe$_{1-x}$W$_x$O$_6$ in a wide region of $x = 0.05-0.6$, wherethe ground state has been proposed to be a disorder-induced spin liquid. Herewe show that the spin-liquid-like $x = 0.2$ and $x = 0.5$ samples havedistinctly different local spin correlations, which suggests they havedifferent ground states. Furthermore, the previously ignored interlayercoupling between the square-planes is likely to play a role in the suppressionof magnetic order on the W-rich side at $x \approx 0.6$. These resultshighlight the complex magnetism of Sr$_2$CuTe$_{1-x}$W$_x$O$_6$ and hint at anew quantum critical point at $x \approx 0.3$.

Structure, spin correlations and magnetism of the $S = 1/2$ square-lattice antiferromagnet Sr$_2$CuTe$_{1-x}$W$_x$O$_6$ ($0 \leq x \leq 1$)