Sol-Gel Synthesis and Characterization of Yttrium-Doped MgFeO Spinel.

In this study, an environmentally friendly sol-gel synthetic approach was used for the preparation of yttrium-doped MgFeO. Two series of compounds with different iron content were synthesized and A-site substitution effects were investigated. In the first series, the iron content was fixed and the charge balance was suggested to be compensated by a partial reduction of Fe to Fe or formation of interstitial O ions.

Structure Modification, Evolution, and Compositional Changes of Highly Conductive La:BaSnO Thin Films Annealed in Vacuum and Air Atmosphere.

Perovskite-type La:BaSnO (LBSO) has been drawing considerable attention due to its high electron mobility and optical transparency. Its thin film electrical properties, however, remain inferior to those of single crystals. This work investigates the thermal post-treatment process of films deposited using the metalorganic chemical vapor deposition method to improve the electrical properties of different stoichiometry films, and demonstrates the modification of thin film's structural properties using short and excessive annealing durations in vacuum conditions.

A Facile Synthesis and Characterization of Highly Crystalline Submicro-Sized BiFeO.

In this study, a highly crystalline bismuth ferrite (BFO) powder was synthesized using a novel, very simple, and cost-effective synthetic approach. It was demonstrated that the optimal annealing temperature for the preparation of highly-pure BFO is 650 °C. At lower or higher temperatures, the formation of neighboring crystal phases was observed.