Electronic properties of low-dimensional oxides Te4Mo20O62 and VMoO5

Abstract Crystals of some new low-dimensional compounds, Te 4 Mo 20 O 62 and VMoO 5 , have been grown by gas phase transport method. From X-ray analysis the crystal structure of Te 4 Mo 20 O 62 was determined to be of the intergrowth tungsten bronze type. The crystal of VMoO 5 is a monoclinic plate-like structure. Te 4 Mo 20 O 62 is a semiconductor and the electrical resistivity shows a big two-dimensional anisotropy. It was also found to have a remarkable current dependent non-linear behavior. The magnetic susceptibility of VMoO 5 showed a metamagnetic behavior and an antiferromagnetic phase transition below 40 K.