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/

Zendy Plus

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

Zendy Tools

Zendy Open

The question of structural disorder and its effects on magnetism is relevantto a number of spin liquid candidate materials. Although commonly thought of asa route to spin glass behavior, here we describe a system in which thestructural disorder results in long-range antiferromagnetic order due to localsymmetry breaking. Nd$_2$ScNbO$_7$ is shown to have a dispersionless gappedexcitation observed in other neodymium pyrochlores below T$_N$ = 0.37 K throughpolarized and inelastic neutron scattering. However the dispersing spin wavesare not observed. This excited mode is shown to occur in only 14(2) \% of theneodymium ions through spectroscopy and is consistent with total scatteringmeasurements as well as the magnitude of the dynamic moment 0.26(2) $\mu_B$.The remaining magnetic species order completely into the all-in all-out Isingantiferromagnetic structure. This can be seen as a result of local symmetrybreaking due disordered Sc$^{+3}$ and Nb$^{+5}$ ions about the A-site. Fromthis work, it has been established that B-site disorder restores thedipole-like behaviour of the Nd$^{+3}$ ions compared to the Nd$_2$B$_2$O$_7$parent series.

Magnetic Ordering in the Ising Antiferromagnetic Pyrochlore Nd2ScNbO7