کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1616497 | 1516380 | 2012 | 4 صفحه PDF | دانلود رایگان |
The Ni-doped and Ni–Na codoped ZnO thin films have been prepared on quartz substrates by pulsed laser deposition. The effect of Na on the magnetic and electrical properties of Ni-doped ZnO has been investigated. The dopant Na+ was identified by XPS measurement. The Hall measurement showed weak p-type property in the Ni–Na codoped ZnO thin film. The room-temperature ferromagnetism in the Ni–Na codoped ZnO thin film was obviously enhanced due to the strengthening of the ferromagnetic exchange interaction by the p-type dopant Na+. The possible fabrication of ZnO-based p-type diluted magnetic semiconductors should be of interest for spintronic applications.
► Preparation and characterization of Ni doped and Ni–Na co-doped ZnO thin films.
► Both were prepared by PLD and showed room temperature ferromagnetism.
► Na changes the electrical property and enhances the ferromagnetism.
Journal: Journal of Alloys and Compounds - Volume 513, 5 February 2012, Pages 445–448