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

Extensive experimental investigations of the magnetic structures andexcitations in the XY pyrochlores have been carried out over the last decade.Three families of XY pyrochlores have emerged: Yb$_2B_2$O$_7$, Er$_2B_2$O$_7$,and, most recently, $AA'$Co$_2$F$_7$. In each case, the magnetic cation (eitherYb, Er, or Co) exhibits XY anisotropy within the local pyrochlore coordinates,a consequence of crystal field effects. Materials in these families displayrich phase behavior and are candidates for exotic ground states, such asquantum spin ice, and exotic ground state selection via order-by-disordermechanisms. In this review, we present an experimental summary of the groundstate properties of the XY pyrochlores, including evidence that they arestrongly influenced by phase competition. We empirically demonstrate thesignatures for phase competition in a frustrated magnet: multiple heat capacityanomalies, suppressed $T_N$ or $T_C$, sample and pressure dependent groundstates, and unconventional spin dynamics.

Experimental Insights into Ground State Selection of Quantum XY Pyrochlores