2025/02/18 by Kaushick K. Parui, Anton A. Kulbakov, Parui, Kaushick K. +23 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Multiferroics and related materials #Strongly Correlated Electrons (cond-mat.str-el)
paper · pdf · doi:10.48550/arxiv.2502.12433
openalex publication_date 2025/02/18 · openalex created_date 2025/02/20 · openalex updated_date 2026/07/28
Frustrated magnetism in face-centred cubic (fcc) magnetic sublattices remains underexplored but holds considerable potential for exotic magnetic behaviour. Here we report on the crystal structure, magnetic and thermodynamic properties of the A-site-vacant double hydroxide perovskite MnSn(OH)6. Despite dominant antiferromagnetic interactions among Mn2+ moments, evidenced by a negative Curie-Weiss temperature, the lack of a sharp thermodynamic transition down to 350 mK implies the absence of long-range magnetic order. However, a broad hump in the specific heat at 1.6 K suggests short-range correlations. Neutron diffraction at low temperatures confirms the presence of three-dimensional antiferromagnetic correlations, manifested as diffuse magnetic scattering with a correlation length ξ= 24.66 Å and magnetic propagation vectors k=((1)/(2) (1)/(2) (1)/(2)) and (0 0.625 0) at 20 mK.