2026-04-20T08:47:31Z https://archive.materialscloud.org/oai2d

oai:materialscloud.org:c7ks9-e8989 2026-02-17T15:54:34Z openaire_data community-mcarchive

Fennell, Tom Fennell, Tom 2026-02-17 <p>The 𝛽-pyrochlore is a charge ice – each tetrahedron of the pyrochlore lattice is occupied by two Ni2+ and two Cr3+ according to an ice rule, resulting in fully packed same-species loops with power-law length distribution. Using inelastic neutron scattering and numerical simulations, we show that the spin dynamics can be well described by a model with three antiferromagnetic interaction strengths, one for Ni-Ni, Cr-Ni, and Cr-Cr interactions. Because the strengths of the two intra-loop interactions are quite different, the fluctuations of each type of loop can be identified in the spectrum. therefore forms an algebraic loop liquid in which power-law cation correlations control the spin dynamics. Our parameters predict a transition to spin nematic order with associated arrest of dynamics at 𝑇𝑛≈0.55 K, while we observe a freezing transition at 𝑇𝑓=2.3K. Measurements of magnetisation, ac and non-linear susceptibility show that this is not a canonical spin glass transition so we associate it with the development of slow dynamics due to inter-loop nematic correlations.</p> application/gzip text/plain https://doi.org/10.24435/materialscloud:b1-hk oai:materialscloud.org:c7ks9-e8989 mcid:2026.42 eng Materials Cloud https://journals.aps.org/prl/accepted/10.1103/xvxt-whns https://archive.materialscloud.org/communities/mcarchive https://doi.org/10.24435/materialscloud:ht-0j info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode frustrated magnetism correlated disorder inelastic neutron scattering Supporting data for the paper "Algebraic loop liquid in the pyrochlore CsNiCrF6" info:eu-repo/semantics/other