| 氧分压对Zn0.99Mn0.01O稀磁薄膜结构和磁学特性的影响 |
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| 引用本文： | 于威,陈明敬,高卫,滕晓云,傅广生.氧分压对Zn0.99Mn0.01O稀磁薄膜结构和磁学特性的影响[J].河北大学学报(自然科学版),2011,31(2):135-140. |
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| 作者姓名： | 于威 陈明敬 高卫 滕晓云 傅广生 |
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| 作者单位： | 河北大学,物理科学与技术学院,河北,保定,071002 |
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| 基金项目： | 河北省自然科学基金资助项目，河北大学自然科学基金资助项目 |
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| 摘 要： | 采用脉冲激光沉积技术在Al2O3衬底上制备了Mn掺杂的ZnO稀磁薄膜.通过不同氧压下所制备样品的微观结构、光学性质和铁磁特性分析,研究了氧分压对Zn0.99Mn0.01O稀磁薄膜微观结构和磁学特性的影响.结果表明,所沉积薄膜均具有良好的c轴择优取向.在氧分压为5 Pa时得到的(002)衍射峰半高宽最小,但薄膜的室温铁磁...
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| 关 键 词： | ZnO稀磁薄膜 室温铁磁性 脉冲激光沉积 |
Influence of Oxygen Partical Pressure on the Structure and Magnetic Properties of Zn0.99Mn0.01O Diluted Magnetic Films |
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| YU Wei,CHEN Ming-jing,GAO Wei,TENG Xiao-yun,FU Guang-sheng.Influence of Oxygen Partical Pressure on the Structure and Magnetic Properties of Zn0.99Mn0.01O Diluted Magnetic Films[J].Journal of Hebei University (Natural Science Edition),2011,31(2):135-140. |
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| Authors: | YU Wei CHEN Ming-jing GAO Wei TENG Xiao-yun FU Guang-sheng |
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| Institution: | (College of Physics Science and Technology,Hebei University,Baoding 071002,China) |
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| Abstract: | Manganese(Mn) doped ZnO films are grown on sapphire substrates by pulsed laser deposition technique.We systematically studied the influence of oxygen partical pressure on the microstructure and magnetic properties of Zn0.99Mn0.01O diluted magnetic films by analysising the microstructure,optical properties and magnetic properties of the sample which were deposited at various oxygen pressure.Experimental results demonstrated that the deposited films had good c-axis preferred orientation.When oxygen partial pressure was 5 Pa,we observed full width at half maximum of(002) diffraction peaks was the minimum,but room temperature ferromagnetism(RTFM) of the films increased with the increasing of oxygen pressure.It is suggested that zinc vacancy caused by Mn doping may induce RTFM of Zn0.99Mn0.01O film. |
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| Keywords: | ZnO magnetic films room-temperature ferromagnetism pulsed laser deposition |
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