“…To reduce the sintering temperature, mechanochemical synthesis has been researched. 19 22,23 As for the single-crystalline MnNb 2 O 6 , the common growth methods include flux growth, 24 the Czochralski technique, 10,11,25 and the floating zone method. 2 Inspired by the promising physicochemical properties and extensive potential applications of MnNb 2 O 6 materials, it is interesting and challenging to explore a simple synthetic approach to fabricate them with special morphologies.…”