An Improved Method for Obtaining Single-Phase Sr2MoO4 under Controlled Ultra-low Oxygen Partial Pressure

摘要

We investigated a method for obtaining a sintered bulk sample of single-phaseSr2MoO4, which has recently increased in importance due to its similarities tosuperconducting Sr2RuO4. We discovered that with the aid of Ti2O3 as a p(O2)buffer, high-purity Sr2MoO4 is successfully synthesized in a sealed tube. Weconfirmed the space group and determined the exact elemental composition of thecompound in order to establish its stoichiometry. The guideline for therational choice of a p(O2)-buffer material is discussed.