Magnetic Properties of Sr₃V₂O₇

Abstract

Stoichiometric Sr 3 V 2 O 7 was prepared by high-pressure synthesis method from carefully chosen raw materials. Unusual magnetic behavior reported previously, such as a kink of temperature dependence of magnetic susceptibility and thermal hyesteresis of the susceptibility, disappears in our sample, and instead a Pauli paramagnetic behavior appears. The intrinsic magnetic behavior was hidden in the previous study by large Curie-Weiss term at low temperatures likely due to oxygen nonstoichiometry and/or crystal defects.