Crystal Growth of Quaternary Rare Earth Selenosilicates by Using the Flux-Assisted Boron Chalcogen Mixture Method: Investigation of Their Magnetic and Optical Properties
Document Type
Article
Abstract
A series of rare earth magnesium selenosilicates, RE3Mg0.5SiSe7 (RE = Ce, Pr, Nd, Sm, Gd, Tb, Dy) were obtained as single crystal using the flux assisted boron chalcogen mixture (BCM) method. The structures of the crystals were determined by single-crystal X-ray diffraction. The RE3Mg0.5SiSe7 series crystallizes in the hexagonal crystal system in the space group P63. Polycrystalline powders were synthesized to perform physical property measurements. Magnetic measurements over the 2-300 K temperature range reveal that Ce3Mg0.5SiSe7 and Gd3Mg0.5SiSe7 exhibit paramagnetic behavior with negative Weiss constants (θW = −14.50, θW = −6.13 K, respectively). The optical properties of RE3Mg0.5SiSe7 (RE = Ce, Pr, Nd, Sm, Gd) were measured by ultraviolet-visible (UV-vis) diffuse reflectance. Density functional theory (DFT) electronic structure calculations were performed. A second harmonic generation measurement was performed on a polycrystalline powder of Ce3Mg0.5SiSe7 and was found to be SHG active with an efficiency of 0.11 times the standard potassium dihydrogen phosphate (KDP).
Digital Object Identifier (DOI)
Publication Info
Published in Crystal Growth and Design, Volume 25, Issue 11, 2025.
Rights
© 2025 American Chemical Society.
APA Citation
Panigrahi, Morrison, Wisesa, & Besmann (2025). Crystal Growth of Quaternary Rare Earth Selenosilicates by Using the Flux-Assisted Boron Chalcogen Mixture Method: Investigation of Their Magnetic and Optical Properties. Crystal Growth and Design, 25(11). https://doi.org/10.1021/acs.cgd.5c00186