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Li掺杂对Mn-ZnO薄膜结构, 电学和磁学性能的影响
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国家自然科学基金(61078057, 11102164, 51172183);西工大基础研究基金(JC201155, JC 20110237, JC201048);航空基金(2011ZF53065)


Effect of Li-Doping on the Structure and Electrical and Magnetic Properties of Mn-ZnO Film
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    摘要:

    利用磁控溅射法在Si(110)基片上制备了Zn0.95-xLixMn0.05O (x=0, 0.05)薄膜,研究了Li掺杂对Mn-ZnO薄膜结构、电学和磁学性能的影响。XRD结果表明,样品薄膜具有高度的c轴择优取向,并且没有发现其他杂相。AFM表明,Li掺入Mn-ZnO使得薄膜颗粒均匀、质地致密。霍尔测试表明,Li掺入Mn-ZnO使载流子浓度增加,然而没有改变其n型导电类型。磁性测试表明,Li掺入Mn-ZnO使得室温铁磁性增强,可由束缚极化极子(BMP)模型解释。

    Abstract:

    Zn0.95-xLixMn0.05O (x=0, 0.05) films were deposited on p-Si(110) by magnetron sputtering, and their structure, and electrical and magnetic properties were investigated. X-ray diffraction (XRD) results show that the films prefer the orientation along the c-axis and no second phase is found. The surfaces become smoother and denser with Li substitution.?The?Hall Effect measurement indicates the doping of Li in Mn-ZnO increases the concentration of the carrier without changing the n type conductivity. Li doping increases the magnetic property of the film at room temperature, which could be explained by a bound magnetic polaron model.

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杜少鹏,赵晨威,罗炳成,邢 辉,金克新,陈长乐. Li掺杂对Mn-ZnO薄膜结构, 电学和磁学性能的影响[J].稀有金属材料与工程,2013,42(6):1306~1309.[Du Shaopeng, Zhao Chenwei, Luo Bingcheng, Xing Hui, Jin Kexin, Chen Changle. Effect of Li-Doping on the Structure and Electrical and Magnetic Properties of Mn-ZnO Film[J]. Rare Metal Materials and Engineering,2013,42(6):1306~1309.]
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  • 收稿日期:2012-06-15
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