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Electronic structure and magnetic properties of (Mn, N)-codoped ZnO

Electronic structure and magnetic properties of (Mn, N)-codoped ZnO
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摘要 The electronic structures and magnetic properties of(Mn, N)-codoped Zn O are investigated by using the firstprinciples calculations. In the ferromagnetic state, as N substitutes for the intermediate O atom of the nearest neighboring Mn ions, about 0.5 electron per Mn^2+ion transfers to the N^2-ion, which leads to the high-state Mn ions(close to +2.5)and trivalent N3-ions. In an antiferromagnetic state, one electron transfers to the N2-ion from the downspin Mn2+ion,while no electron transfer occurs for the upspin Mn^2+ion. The(Mn, N)-codoped Zn O system shows ferromagnetism,which is attributed to the hybridization between Mn 3d and N 2p orbitals. The electronic structures and magnetic properties of(Mn, N)-codoped Zn O are investigated by using the firstprinciples calculations. In the ferromagnetic state, as N substitutes for the intermediate O atom of the nearest neighboring Mn ions, about 0.5 electron per Mn^2+ion transfers to the N^2-ion, which leads to the high-state Mn ions(close to +2.5)and trivalent N3-ions. In an antiferromagnetic state, one electron transfers to the N2-ion from the downspin Mn2+ion,while no electron transfer occurs for the upspin Mn^2+ion. The(Mn, N)-codoped Zn O system shows ferromagnetism,which is attributed to the hybridization between Mn 3d and N 2p orbitals.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第12期128-132,共5页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China(Grant Nos.11304273,10764005,11164034,11072208,and 11032010) the Yunnan Provincial Natural Science Foundation,China(Grant No.2010DC053) the Scientific Research Foundation for Ph.D.Student of Yunnan Normal University
关键词 first-principles calculations FERROMAGNETISM HYBRIDIZATION first-principles calculations ferromagnetism hybridization
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