2024/08/16 by Abanoub R. N. Hanna, Hanna, Abanoub R. N., A. T. M. N. Islam +9
Chemical Engineering · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Catalysis and Oxidation Reactions #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Strongly Correlated Electrons (cond-mat.str-el)
paper · pdf · doi:10.48550/arxiv.2408.08680
openalex publication_date 2024/08/16 · openalex created_date 2024/09/13 · openalex updated_date 2026/07/28
This study explores the bulk crystal growth, structural characterization, and physical property measurements of the cubic double perovskite Ba2CoWO6(BCWO). In BCWO, Co+2 ions form a face-centered cubic (FCC) lattice with non-distorted cobalt octahedra. The compound exhibits long-range antiferromagnetic order below TN = 14 K. Magnetization data indicated a slight anisotropy along with a spin-flop transition at 10 kOe , a saturation field of 310 kOe and an ordered moment of 2.17 MuB at T = 1.6 K. Heat capacity measurements indicate an effective j = 1/2 ground state configuration, resulting from the combined effects of the crystal electric field and spin-orbit interaction. Surface photovoltage analysis reveals two optical gaps in the UV-Visible region, suggesting potential applications in photocatalysis and photovoltaics. The magnetic and optical properties highlight the significant role of orbital contributions within BCWO, indicating various other potential applications.