Tahir, Nadeem, Altaf Karim, Kristin A Persson, Syed T Hussain, Alejandro G Cruz, Muhammad Usman, Muhammad Naeem, Ruimin Qiao, Wanli Yang, and Yi- De Chuang. "Surface Defects: Possible Source of Room Temperature Ferromagnetism in Co-Doped ZnO Nanorods." The Journal of Physical Chemistry C 117.17 (2013) 8968–8973. DOI | Google Scholar | BibTeX | Endnote tagged