Chemical tuning of a double double perovskite oxide

Abstract

The feasibility of chemical doping of a double double perovskite (DDPv) is demonstrated by La_xCa_1−xMnMnReO₆ solid solutions in which cation-site ordering is preserved to x ≥ 0.5 while La³⁺/Ca²⁺ substitution at one site tunes magnetic properties. Each of the ∼20 DDPv's discovered by high pressure synthesis in recent years is thus a starting point for chemical tuning to discover and tune electronic and magnetic properties.