Abstract
A layered perovskite compound Sr 3V 2O 7.01 was synthesized by heating mixtures of the constituent oxides at 1110°C in flowing hydrogen atmosphere. Rietveld analysis based on powder X-ray diffraction data shows that the compound has a tetragonal structure (I4/mmm) with a = 3.8331(7) A ̇ and c = 20.2459(6) A ̇ . The resistivity of the compound is 4.8 mΩ· cm at room temperature (300 K) and decreases with decreasing temperature down to 2 K. The magnetic susceptibility can be represented by a summation of temperature-independent and Curie-Weiss terms. The effective number of Bohr magnetons per vanadium atom is 0.37, which is considerably smaller than the free-ion value of 1.73 for V 4+.
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