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首页> 美国卫生研究院文献>Heliyon >The structural DC resistivity and magnetic properties of Zr and Co co-substituted Ni0.5Zn0.5Fe2O4
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The structural DC resistivity and magnetic properties of Zr and Co co-substituted Ni0.5Zn0.5Fe2O4

机译：Zr和Co共取代的Ni0.5Zn0.5Fe2O4的结构直流电阻率和磁性能

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摘要

The Zr and Co co-substituted Ni0.5Zn0.5Fe2O4 have been synthesized by sol-gel auto combustion method. The XRD patterns provide single phase cubic spinel with (Fd3¯m(Oh7)) space group and extra peaks found in XRD patterns from x = 0.24 to x = 0.4. The experimental lattice parameter is increased from 8.3995Å to 8.4129 Å and the theoretical lattice parameter is increased from 8.3948Å to 8.4130Å with increasing dopant concentration. The substitute ions in place of ferric ions cause the significant changes in all structural parameters. The D.C resistivity is increased from 126597 Ω-cm to 684229 Ω-cm and the drift mobility is decreased from 4.9×10−36 cm2/V-s to 1.88× 10−36cm2/V-s with increasing dopant concentration. The activation energy is decreased from 0.2108 eV to 0.0905 eV with increasing doping concentration. The saturation magnetization is decreased from 71.1559 emu/gm to 28.2405 emu/gm and the net magnetic moment is decreased from 6.3556 Bhor magnetons to 2.5523 Bhor magnetons with increasing dopant concentration. The Y-K angles are increased from 20.0723̊ to 59.4274̊ with increasing dopant concentration. The anisotropy constant has increased from 100 to 351 with increasing dopant concentration. The permeability is decreased from 117 to 19.4524 with increasing dopant concentration.
机译：通过溶胶-凝胶自动燃烧法合成了Zr和Co共取代的Ni0.5Zn0.5Fe2O4。 XRD模式为单相立方尖晶石提供（ < mi> F d 3 ？ m （ O h 7 ）空间组，在XRD模式中发现的额外峰从x = 0.24到x = 0.4。随着掺杂剂浓度的增加，实验晶格参数从8.3995Å增加到8.4129Å，理论晶格参数从8.3948Å增加到8.4130Å。替代离子代替三价铁离子会导致所有结构参数发生重大变化。直流电阻率从126597Ω-cm增加到684229Ω-cm，漂移迁移率从4.9×10 -36 cm 2 / Vs降低到1.88×10 < sup> −36 cm 2 / Vs随着掺杂剂浓度的增加。随着掺杂浓度的增加，活化能从0.2108 eV降低至0.0905 eV。随着掺杂剂浓度的增加，饱和磁化强度从71.1559 emu / gm降低到28.2405 emu / gm，净磁矩从6.3556 Bhor磁子降低到2.5523 Bhor磁子。 YK角从20.072 3 ̊ 增加到59.427 4 ̊ 随着掺杂剂浓度的增加。随着掺杂剂浓度的增加，各向异性常数从100增加到351。随着掺杂剂浓度的增加，磁导率从117降低到19.4524。

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