Structural, electrical and magnetic properties of Mo1-xFexO2 (x=0-0.05) thin films grown by pulsed laser ablation
arXiv:0912.0978 · doi:10.1063/1.2885143
Abstract
We report the growth of undoped and Fe (2 and 5 at. percentage) doped molybdenum oxide thin films on c-plane of sapphire substrate using pulsed laser ablation. X-ray diffraction results show that the films are oriented in (100) direction and have monoclinic structure based on MoO2 phase as also supported by Raman spectroscopy. The x-ray photoelectron spectroscopy reveals chemical state of Fe is +2, which favors the substitutional occupancy of Fe ion in the MoO2 matrix. The room temperature resistivity of all the films are very low (approx.100 microohm-cm). The Fe doped samples show ferromagnetic behavior at room temperature.
18 pages, 8 figurs and 2 tables