Effect of Zr Doping on the Magnetic and Phase Transition Properties of VO₂ Powder.

ABSTRACT: In this work, V1-xZrxO₂ powder (x = 0, 0.01, 0.02, 0.04) was synthesized by two step hydrothermal method. The micro-topography, magnetic and phase transition properties have been investigated using various measurement techniques. All prepared V1-xZrxO₂ powder samples exhibit monoclinic structure at room temperature. With the Zr4+ ions doping concentration increased, the shapes of VO₂ particles change from spherical to rectangular slice. Besides, the saturation magnetic moment of the samples decrease with the increase of doped Zr4+ ions concentration, while their phase transition temperature increase gradually with Zr ions doping at a rate of around 2 °C/at% on average. We investigated the Zr doping effects on V-V dimers and confirmed the role of V-V dimers in phase transition. We speculate

SUBMITTER: Xu J 

PROVIDER: S-EPMC6359382 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature