Electrical transport and thermodynamic properties of SrNbO$_{3.41}$

In 1991, Lichtenberg et al.$^1$ reported the electric conductivity of SrNbO$_{3.41}$ revealing quasi-1D behavior. This system offers many possibilities to vary the compositional, structural, chemical, and physical properties.$^1$ Depending upon the temperature range and crystallographic direction, it exhibits metallic behavior or a metal-semiconductor transition. In this work, the properties of SrNbO$_{3.41}$ single crystals are revisited. The single crystals were grown by the floating zone method and characterized by x-ray diffraction. Electrical resistivity as a function of temperature was measured with four-probe and Montgomery methods. We will also report results of heat capacity and thermal expansion measurements. $^1$F. Lichtenberg et al., Z. Phys. B {\bf 84}, 369 (1991); F. Lichtenberg et. al., Prog. Solid State Chem. {\bf 29}, 1-70 (2001).