Enhancement of magnetic properties in (Ga,Mn)N nanowires due to N2 plasma treatment

被引：9

作者：

Baik, Jeong Min ^{[1
]}

Shon, Yoon

Kang, Tae Won

Lee, Jong-Lam

机构：

[1] Pohang Univ Sci & Technol, Dept Mat Sci & Technol, Pohang 790784, Kyungbuk, South Korea

[2] Dongguk Univ, Quantum Funct Semicond Res Ctr, Chung Ku, Seoul 100715, South Korea

[3] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, Kyungbuk, South Korea

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 15期

关键词：

D O I：

10.1063/1.2360890

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The local structure of Mn impurities in ferromagnetic (Ga,Mn)N nanowires was investigated using extended x-ray absorption fine structure (EXAFS). By N-2 plasma treatment, the nitrogen concentration increased and the ferromagnetic signal also increased. The EXAFS results showed that the Mn concentration occupying Ga sites increased and interstitially doped Mn atoms significantly decreased due to the plasma treatment. As a result, the N vacancies reduced and crystalline quality improved, resulting in the enhancement of ferromagnetic properties. (c) 2006 American Institute of Physics.

引用

页数：3

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