Growth and magnetic properties of Mn and MnSn-doped ZnO nanorods

Abstract

ZnO nanorods synthesized at 700 degrees C by heating the mixture of solution processed Zn precursor with NaCl-Li2CO3 salt were examined. The size of the nanorods was in the range of 15-100 nm in diameter and 0.5-5 mu m in length. The nanorods show the single crystal structure being free from second phases. The Mn and MnSn-doped nanorods by demonstrated ferromagnetic properties and unique luminescence properties due to doping and charge carrier confinement effects. Magnetic susceptibility of the samples as a function of temperature shows Curie-Weiss behavior. Hysteresis with the coercive field < 200 Oe was clearly observed in magnetization versus field curves at 5 and 300 K. Increasing the Mn concentration increases significantly the magnetic hysteresis.