|
|||||
|
|
Magnetic and Raman scattering studies of Co-doped ZnO thin films grown by pulsed laser deposition |
|
| Authors: | Arun Aravind K. Hasna M. K. Jayaraj Mukesh Kumar Ramesh Chandra |
| Affiliation: | 1. Nanophotonic and Optoelectronic Devices Laboratory, Department of Physics, Cochin University of Science and Technology, Kochi, 682022, India 2. Nano Science Laboratory, Institute Instrumentation Centre, IIT Roorke, Roorkee, Uttarkhand, 247667, India |
| Abstract: | Phase pure Zn1?x Co x O thin films grown by pulsed laser deposition have transmittance greater than 75 % in the visible region. Raman studies confirm the crystalline nature of Zn1?x Co x O thin films. Zn0.95Co0.05O thin films show room temperature ferromagnetism with saturation magnetization of 0.4μ B /Co atom. The possible origin of paramagnetism at higher Co doping concentrations can be attributed to the increased nearest-neighbor antiferromagnetic interactions between Co2+ ions in ZnO matrix. XPS confirms the substitution of Co2+ ions into the ZnO host lattice. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |