The magnetic mechanism of Zn0.93Co0.07O thin films

• 来源期刊: 中国科学G辑(英文版)
• 年，卷（期）: 2009,（1）
• 页码范围: 21-25
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11433-009-0010-8

摘要

0.93Co0.07O thin films infiltrated with nitrogen and aluminum were prepared by means of magneton sputtering. The structural and magnetic properties of the films were studied systematically. The mate-rials were single phase (wurtzite structure) with surfaces showing signs of homogeneous growth. The films were ferromagnetic at room temperature, and magnetic domains could be clearly observed on the surfaces. In the case of AI infiltration, saturated magnetization Increased with AI concentration in-creasing; whereas In the case of N infiltration, saturated magnetization decreased with the increase in N concentration. The results show that ferromagnetic Interactions in Co-doped ZnO diluted magnetic semiconductor may be transferred by electrons.