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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A family of insulating iridates with chemical formula Li$_2$IrO$_3$ hasrecently been discovered, featuring three distinct crystal structures$\alpha,\beta,\gamma$ (honeycomb, hyperhoneycomb, stripyhoneycomb).Measurements on the three-dimensional polytypes, $\beta$- and$\gamma$-Li$_2$IrO$_3$, found that they magnetically order into remarkablysimilar spiral phases, exhibiting a non-coplanar counter-rotating spiralmagnetic order with equivalent q=0.57 wavevectors. We examine magneticHamiltonians for this family and show that the same triplet of nearest-neighborKitaev-Heisenberg-Ising (KJI) interactions reproduces this spiral order on both$\beta,\gamma$-Li$_2$IrO$_3$ structures. We analyze the origin of thisphenomenon by studying the model on a 1D zigzag chain, a structural unit commonto the three polytypes. The zigzag-chain solution transparently shows how theKitaev interaction stabilizes the counter-rotating spiral, which is shown topersist on restoring the inter-chain coupling. Our minimal model makes aconcrete prediction for the magnetic order in $\alpha$-Li$_2$IrO$_3$.

Unified theory of spiral magnetism in the harmonic-honeycomb iridates {\alpha}, {\beta}, {\gamma} Li2IrO3