First-principles study on ferromagnetism in nitrogen-doped CdO

被引：10

作者：

Zhang, Chang-wen ^{[1
]}

Wang, Pei-ji ^{[1
]}

Su, Yan ^{[1
]}

机构：

[1] Univ Jinan, Sch Sci, Jinan 250022, Shandong, Peoples R China

来源：

PHYSICS LETTERS A | 2010年 / 374卷 / 17-18期

关键词：

Ferromagnetic semiconductor; First-principles calculation; SPINTRONICS;

D O I：

10.1016/j.physleta.2010.02.050

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the full-potential linearized augmented plane wave method, we report the electronic structures and magnetism in N-doped CdO system. The results indicate an isolated N atom produces a total magnetic moment of 1.0 mu(B) and introduces spin-polarized 2p states in the band gap. The origin of the magnetic moments is the holes in N 2p band of the N dopant. The half-metallic ferromagnetic properties in N-CdO system is mainly driven by N(2p)-Cd(4d)-O(2p)-Cd(4d)-N(2p) coupling chain through the strong p-p interaction between N and O atoms. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1889 / 1892

页数：4

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