Influences of different Bi2O3 additive amounts on static magnetic characteristics, micromorphology and ferromagnetic resonance linewidth of M-type Sr hexaferrites
文献类型：期刊论文
| 作者 | Dai, Yue1; Lan, Zhongwen1; Yu, Zhong1; Sun, Ke1; Zhang, Xiaofeng1; Jiang, Xiaona1; Wu, Chuanjian1; Tong, Wei2
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| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 540 |
| ISSN号 | 0304-8853 |
| DOI | 10.1016/j.jmmm.2021.168443 |
| 通讯作者 | Lan, Zhongwen(zwlan@uestc.edu.cn) |
| 英文摘要 | Considering the improvement of electronics regarding high frequency and miniaturization, SrM hexaferrites need to exhibit high anisotropy field H-a, high remanence ratio M-r/M-s, and low ferromagnetic resonance linewidth Delta H to create microwave devices and equipment with planarisation, miniaturisation, and high frequencies. The key to achieving self-biased microwave devices with high-frequency is to simultaneously achieve high H-a, high M-r/M-s, and low Delta H. However, it is hard to meet these requirements. In this study, Sr0.4La0.3Ca0.3Fe11.85Al1.0Co0.15O19 was used to study the effect of different doping amounts of Bi2O3 on its magnetic characteristics, micromorphology and FMR linewidth. With the increase of Bi2O3 doping, the grain size of the sample gradually increased, and the uniformity of the grain size gradually decreased. When the Bi2O3 doping amount x increased from 0 to 1.2 wt%, the 4 pi M-s and 4 pi M-r values increased and the coercivity displayed the opposite tendency. The samples showed great uniaxial anisotropy. The magnetocrystalline anisotropy field H-a shows a trend of initially decreased and then increased. When x = 1.0 wt%, H-a reaches the maximum value of 28.9 kOe. At this time, the ferromagnetic resonance linewidth AH of the sample is 1578 Oe. The theory of IGA was adopted to divide the FMR linewidth into two parts Delta H-a and Delta H-p. Accroding to the results, Delta H-a takes the bigger proportion of linewidth. However, the change in Delta H-p is not negligible. When x = 1.0 wt%, the sample showed its best performance (4 pi M-s = 3412 Gs, 4 pi M-r = 2905 Gs, H-c = 2649 Oe, M-r/M-s = 85.1%, large H-a = 28.864 kOe, and Delta H = 1578 Oe). The SrM ferrite materials provided in this study can potentially be used in the microwave engineering, high-frequency, and self-biased devices. |
| WOS关键词 | FERRITE THIN-FILMS ; BARIUM-FERRITE ; SUBSTITUTED BARIUM ; ANISOTROPY ; TEMPERATURE ; DEPOSITION |
| 资助项目 | National Natural Science Foundation of China[U1732275] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000705207800003 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/125519]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Lan, Zhongwen |
| 作者单位 | 1.Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 610054, Peoples R China 2.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Yue,Lan, Zhongwen,Yu, Zhong,et al. Influences of different Bi2O3 additive amounts on static magnetic characteristics, micromorphology and ferromagnetic resonance linewidth of M-type Sr hexaferrites[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2021,540. |
| APA | Dai, Yue.,Lan, Zhongwen.,Yu, Zhong.,Sun, Ke.,Zhang, Xiaofeng.,...&Tong, Wei.(2021).Influences of different Bi2O3 additive amounts on static magnetic characteristics, micromorphology and ferromagnetic resonance linewidth of M-type Sr hexaferrites.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,540. |
| MLA | Dai, Yue,et al."Influences of different Bi2O3 additive amounts on static magnetic characteristics, micromorphology and ferromagnetic resonance linewidth of M-type Sr hexaferrites".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 540(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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