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Effect of Zn~(2+) doping on the structural, magnetic and dielectric properties of MnFe_2O_4 prepared by the sol-gel method

机译:Zn〜(2+)掺杂对溶胶-凝胶法制备的MnFe_2O_4的结构,磁性和介电性能的影响

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摘要

Abstract Mn~(1−x)Zn~(x)Fe~(2)O~(4)(x = 0.2–0.8) ferrite samples were successfully prepared by the sol–gel method. X-ray diffraction study reveals that single cubic spinel phase was formed in Mn~(1−x)Zn~(x)Fe~(2)O~(4)samples. The SEM micrographs revealed that the microstructures change significantly with different Zn_(2+)doping concentration and sintering temperature while the grain size grow up to 9.48 μm for Mn~(0.6)Zn~(0.4)Fe~(2)O~(4)sample sintered at 1100 °C. Further, the dielectric and magnetic measurements indicated that both Zn_(2+)doping and sintering temperature could affect both electrical and magnetic parameters such as dielectric constant and saturation magnetization in a great manner. The Mn~(0.6)Zn~(0.4)Fe~(2)O~(4)sample sintered at 1100 °C for 8 h is found to show the largest M ~( s )value (77.30 emu/g) in this work. These results indicate that Zn_(2+)doping or sintering temperature can adjust the microstructures, dielectric and magnetic properties of Mn~(1−x)Zn~(x)Fe~(2)O~(4)ferrites.
机译:摘要用溶胶-凝胶法成功制备了Mn(1-x)Zn〜(x)Fe〜(2)O〜(4)(x = 0.2-0.8)铁氧体样品。 X射线衍射研究表明,在Mn〜(1-x)Zn〜(x)Fe〜(2)O〜(4)样品中形成了单立方尖晶石相。扫描电镜显微照片显示,Mn〜(0.6)Zn〜(0.4)Fe〜(2)O〜(4)的晶粒结构随着Zn_(2+)掺杂浓度和烧结温度的变化而显着变化,而晶粒尺寸长至9.48μm。在1100°C下烧结的样品。此外,介电和磁测量表明,Zn_(2+)的掺杂和烧结温度都可以极大地影响电和磁参数,例如介电常数和饱和磁化强度。在1100°C下烧结8h的Mn〜(0.6)Zn〜(0.4)Fe〜(2)O〜(4)样品在该样品中显示出最大的M〜(s)值(77.30 emu / g)工作。这些结果表明Zn_(2+)掺杂或烧结温度可以调节Mn〜(1-x)Zn〜(x)Fe〜(2)O〜(4)铁氧体的微观结构,介电和磁性能。

著录项

  • 来源
    《Journal of materials science》 |2018年第7期|5356-5362|共7页
  • 作者单位

    Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology,College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Optoelectronics, Taiyuan University of Technology;

    College of Physics and Electrical Engineering, Anyang Normal University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 13:43:30

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