Abstract
Single crystals of Tl 0.3MoO 3 blue bronze were grown by the temperature gradient flux technique for the first time. Tl 0.3MoO 3 crystalizes with monoclinic symmetry, space group C2, C2/m or Cm, a = 18.486(1) A ̊ , b = 7.5474(6) A ̊ , c = 10.0347(7) A ̊ , β = 118.377(6)° and appears to be isostructural with the K 0.3MoO 3 blue bronze. The physical properties of Tl 0.3MoO 3 are similar to those of the K 3MoO 3 and Rb 3MoO 3 phases. The resistivity of Tl 0.3MoO 3 is highly anisotropic and its temperature susceptibility (4.2–300K) decreases sharply with decreasing temperature near the transition seen in the resistivity. The onset of another transition <60K is also indicated by the susceptibility data. Non-linear current-voltage (I–V) characteristics observed at ∼70K above applied threshold voltages of the order of ∼300mV/cm suggest the sliding of charge density condensate.
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