Abstract
The interlanthanide compounds Er 3SmS 6, Er 3SmSe 6, and Er 1.12Sm 0.88Se 3 have been synthesized from stoichiometric reactions of the elements in a KI salt flux at 1273, 1173, and 1123 K, respectively. Er 3SmS 6 and Er 3SmSe 6, which are isostructural and ordered, crystallize in space group P2 1/ m in the ScEr 3S 6 structure type whereas Er 1.12Sm 0.88Se 3, in which the Er and Sm atoms are disordered, crystallizes in space group Pnma in the U 2S 3 structure type. Er 3SmS 6 is a paramagnet with a μ eff=11.25(1) μ B/mol. From optical measurements a direct band gap of 2.0 eV for light perpendicular to the (100) crystal face of Er 3SmSe 6 is derived whereas for isostructural Er 3SmS 6 an optical transition at 2.2–2.4 eV and a broad absorption peak at lower energies are observed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
