Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Optical and magnetic properties of Zn0.9-xCo0.1O : Al-x thin films|
|Abstract:||The high-T-c ferromagnetic property in Co-doped ZnO (ZCO), mediated by donor impurity band was tested by controlled introduction of shallow donors (Al) in the Zn0.9-xCo0.1O : Al-x (x = 0.005 and 0.01) thin films. The saturation magnetization for the 10% Co-doped ZnO (4 emu/cc) at 300 K reduces (similar to 0.8 emu/cc) due to Al doping. The resistivity drops abruptly, from similar to 10(3) Omega-cm for the ZCO film to 0.033 and 0.02 Omega cm for the 0.5% and 1.0% Al doped ZCO samples, respectively. The XPS measurements did not show any signature of metallic CO Clusters formation in these samples. (C) 2008 Elsevier Ltd. All rights reserved.|
|Subject:||dilute magnetic semiconductors (DMS)|
|Editor:||Pergamon-elsevier Science Ltd|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.