Title :
The Oxygen Vacancies Correlated Ferromagnetism in Transition Metal-Doped ZnO Nanowires
Author :
Yongjia Zhang ; Ensi Cao ; Changmin Shi ; Jifan Hu
Author_Institution :
Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
The magnetic properties of 3d transition metal (TM = V, Cr, and Mn)-doped ZnO nanowires (NWs) with and without oxygen vacancy are investigated by ab initio calculations. The magnetic moments can be induced by TM impurities in ZnO NWs, localized on the 3d TM atoms and their neighboring O atoms. Furthermore, the ferromagnetism in V-, Cr-, and Mn-doped ZnO NWs is strongly correlated with oxygen vacancies.
Keywords :
II-VI semiconductors; ab initio calculations; chromium; ferromagnetic materials; magnetic moments; manganese; nanomagnetics; nanowires; semimagnetic semiconductors; vacancies (crystal); vanadium; wide band gap semiconductors; zinc compounds; 3d transition metal-doped ZnO nanowires; ZnO:Cr; ZnO:Mn; ZnO:V; ab initio calculations; magnetic moments; magnetic properties; oxygen vacancies correlated ferromagnetism; Couplings; Frequency modulation; Manganese; Nanowires; Three-dimensional displays; Zinc oxide; Ferromagnetism; Oxygen Vacancies; Transition metal; ZnO nanowires; ZnO nanowires (NWs); oxygen vacancies; transition metal (TM);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2438027
