Efforts are rising in opening up science by making data more transparent and more available, including the data reduction and evaluation procedures and code. A strong foundation for this is the FAIR principle, building on Findability, Accessibility, Interoperability, and Reuse of digital assets. Here, we have used data, which was made available by the Institute Laue-Langevin and can be identified using a DOI, to follow the FAIR principle in extracting, evaluating and publishing triple axis data, recorded at IN3.
Weak bond disorder disrupts the expected spin-liquid ground-state of the ideal S = 1/2 Heisenberg pyrochlore antiferromagnet. Here we introduce a single crystal study of the structural and magnetic properties of the bond-disordered pyrochlore NaCdCo2F7. The magnetic susceptibility appears isotropic, with a large negative Curie-Weiss temperature (θCW = -108(1) K), however no magnetic order is observed on cooling until a spin-glass transition at Tf = 4.0 K. AC-susceptibility measurements show a frequency-dependent shift of the associated cusp in χ’ at Tf, that can be fitted well by the empirical Vogel-Fulcher law. The magnetic moment of µeff = 5.4(1) µB/Co2+ indicates a significant orbital contribution and heat capacity measurements show that down to 1.8 K, well below Tf, only Smag ~2⁄3 Rln(2) of the magnetic entropy is recovered, suggestive of residual continued dynamics. Structural and magnetism comparisons are made with the other known members of the NaA’’Co2F7 family (A’’ = Ca2+, Sr2+), confirming the expected relationship between spin-glass freezing temperature, and extent of magnetic bond disorder brought about by the size mismatch between A-site ions.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.