DSpace logo

Please use this identifier to cite or link to this item:
Title: Structural and Magnetic Studies of Zn0.95Co0.05O and Zn0.90Co0.05Al0.05O
Authors: Saleem, Murtaza
Siddiqi, Saadat A.
Atiq, Shahid
Anwar, M. Sabieh
Keywords: Natural Science
Structural and Magnetic Studies
Issue Date: 1-Jan- 201
Publisher: Chinese Physics Letters
Abstract: Single-phase Zn0.95Co0.05O and Zn0.90Co0.05Al0.05O samples were prepared by a novel combustion method. X-ray diffraction studies exhibit the pure phase wurtzite structure of doped ZnO. Energy dispersive x-ray analysis confirms the incorporation of dopants into the host material. Scanning electron microscopy shows the ordered morphology in both of the samples. Temperature-dependent resistivity analysis describes the expected semiconducting behavior that is similar to the parent ZnO materials. Room-temperature magnetic measurements reveal the absence of ferromagnetism in Co-doped ZnO, while the Co and Al co-doped sample displays apparent room-temperature ferromagnetic behavior. The decrease of resistivity and presence of ferromagnetic behavior in Al-doped ZnCoO system corroborate the significant role of free carriers.
ISSN: 28 116103
Appears in Collections:Journals

Files in This Item:
File Description SizeFormat 
pdf.htm140 BHTMLView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.