2020/09/03 by Joseph A. M. Paddison, Paddison, Joseph A. M., Georg Ehlers +26
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Inorganic Fluorides and Related Compounds #Materials Science (cond-mat.mtrl-sci) #Multiferroics and related materials #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.2009.01670
5 pages, 4 figures. This manuscript develops an earlier preprint, arXiv:1506.05045, from which it is significantly different
arxiv created 2020/09/03 · openalex publication_date 2020/09/03 · arxiv updated 2020/09/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Partially-ordered magnets are distinct from both spin liquids and conventional ordered magnets because order and disorder coexist in the same magnetic phase. Here, we determine the nature of partial order in the canonical frustrated pyrochlore antiferromagnet Gd2Ti2O7. Using single-crystal neutron-diffraction measurements in applied magnetic field, magnetic symmetry analysis, inelastic neutron-scattering measurements, and spin-wave modeling, we show that its low-temperature magnetic structure involves two propagation vectors (2-k structure) with suppressed ordered magnetic moments and enhanced spin-wave fluctuations. Our experimental results support theoretical predictions of thermal fluctuation-driven order in Gd2Ti2O7.