High quality KMo4O6 single crystals with tetragonal structure (space group P4/mbm) have been prepared by fused salt electrolysis. The crystals were studied by scanning electron microscopy (SEM), X-ray diffractometry, electrical resistivity, and magnetization measurements. X-ray powder diffraction patterns and SEM have given some information on the growth of single crystals. Electrical resistivity as a function of temperature shows that the KMo4O6 compound is a bad metal with resistivity change of approximately 30% in the temperature range from 2 to 300K. A metal-insulator transition (MIT), observed at approximately 110K, has been also confirmed for this material. Magnetization as a function of temperature agrees with previous report, however a magnetic ordering has been observed in M(H) curves in the whole temperature range. © 2012.
CITATION STYLE
Andrade, M., Maffei, M. L., Alves, L. M. S., Dos Santos, C. A. M., Ferreira, B., & Sartori, A. F. (2012). Microstructure and metal-insulator transition in single crystalline KMo4O6. Materials Research, 15(6), 998–1002. https://doi.org/10.1590/S1516-14392012005000132
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