Single-crystal synthesis, structure analysis, and physical properties of the calcium ferrite-type NaxTi2O4 with 0.558<x<1

Single crystals of calcium ferrite CaFe2O4-type NaTi2O4 having millimeter-sized needle shapes were synthesized by a reaction of Na metal and TiO2 in a sealed iron vessel at 1473 K. Sodium-deficient NaxTi2O4 single crystals with 0.558

Magnetic susceptibility of three NaxTi2O4 samples below 300 K. The broad maximum around 40 K observed in as-grown NaTi2O4 is suppressed by an Na deficiency and vanishes in Na0.717Ti2O4.Figure optionsDownload as PowerPoint slide