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

Since its proposal by Anderson, resonating valence bonds (RVB) formed by asuperposition of fluctuating singlet pairs have been a paradigmatic concept inunderstanding quantum spin liquids (QSL). Here, we show that excitationsrelated to singlet breaking on nearest-neighbor bonds describe the high-energypart of the excitation spectrum in YbMgGaO4, the effective spin-1/2 frustratedantiferromagnet on the triangular lattice, as originally considered byAnderson. By a thorough single-crystal inelastic neutron scattering (INS)study, we demonstrate that nearest-neighbor RVB excitations account for thebulk of the spectral weight above 0.5 meV. This renders YbMgGaO4 the firstexperimental system where putative RVB correlations restricted to nearestneighbors are observed, and poses a fundamental question of how complexinteractions on the triangular lattice conspire to form this unique many-bodystate.

Nearest-neighbor resonating valence bonds in YbMgGaO4