| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Prev
Next
|
|
|
Impact of Co2+ substitution on structure and magnetic properties of M-type strontium ferrite with different Fe/Sr ratios |
| Yang Sun(孙洋)1,2, Ruoshui Liu(刘若水)3, Huayang Gong(宫华扬)2, and Baogen Shen(沈保根)1,2,3,4,† |
1 School of Rare Earths, University of Science and Technology of China, Hefei 230026, China;
2 Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, China;
3 Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
4 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
|
|
|
|
Abstract Ion substitution has significantly improved the performance of ferrite magnets, and cobalt remains a key area of research. Studies on the mechanism of Co$^{2+}$ in strontium ferrite, especially SrFe$_{2n-x}$Co$_{x}$O$_{19-\delta }$ ($n = 6.1$-5.4; $x = 0.05$-0.20) synthesized using the ceramic method, showed that Co$^{2+}$ preferentially enters the lattice as the Fe/Sr ratio decreases. This results in a decrease in the lattice constants $a$ and $c$ due to oxygen vacancies and iron ion deficiency. The impact of Co substitution on morphology is minor compared to the effect of the Fe/Sr ratio. As the Fe/Sr ratio decreases and the Co content increases, the saturation magnetization decreases. The magnetic anisotropy field exhibits a nonlinear change, generally increasing with higher Fe/Sr ratios and Co content. These changes in the performance of permanent magnets are attributed to the absence of Fe$^{3+}$ ions at the $12k + 2a$ and 2$b$ sites and the substitution of Co$^{2+}$ at the 2$b$ site. This suggests that by adjusting the Fe/Sr ratio and appropriate Co substitution, the magnetic anisotropy field of M-type strontium ferrite can be effectively optimized.
|
Received: 25 March 2024
Revised: 06 July 2024
Accepted manuscript online: 19 July 2024
|
|
PACS:
|
75.30.Gw
|
(Magnetic anisotropy)
|
| |
75.47.Lx
|
(Magnetic oxides)
|
| |
87.64.kp
|
(Raman)
|
| |
68.55.Ln
|
(Defects and impurities: doping, implantation, distribution, concentration, etc.)
|
|
| Fund: We gratefully acknowledge the financial support from the Research Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences (Grant No. E355B001), Key Research Program of the Chinese Academy of Sciences (Grant No. ZDRW-CN-2021-3), and Science Center of the National Natural Science Foundation of China (Grant No. 52088101). |
Corresponding Authors:
Baogen Shen
E-mail: shenbaogen@nimte.ac.cn
|
Cite this article:
Yang Sun(孙洋), Ruoshui Liu(刘若水), Huayang Gong(宫华扬), and Baogen Shen(沈保根) Impact of Co2+ substitution on structure and magnetic properties of M-type strontium ferrite with different Fe/Sr ratios 2024 Chin. Phys. B 33 107506
|
[1] Guzmán-Mínguez J C, Fuertes V, Granados-Miralles C, Fernández J F and Quesada A 2021 Ceram. Int. 47 31765
[2] Bibi F, Iqbal S, Kalsoom A, Jamshaid M, Ahmed A, Mirza M and Qureshi W A 2023 Ceram Int. 49 15990
[3] Huang K, Yu J, Zhang L, Xu J, Yang Z, Liu C, Wang W and Kan X 2019 J. Alloys Compd. 803 971
[4] Minachi K I 1999 Journal of the Magnetics Society of Japan 23 1093
[5] Kools F, Morel A, Grossinger R, Breton J M L and Tenaud P 2002 J. Magn. Magn. Mater. 242-245 12701276
[6] Pieper M W, Kools F and Morel A 2002 Phys. Rev. B 65 184402
[7] Lechevallier L, Breton J M L, Teillet J, Morel A and Tenaud P 2003 Phys. B 327 135
[8] Liu C, Kan X, Liu X, Feng S, Hu J, Wang W, Rehman K M U and Shezad M 2020 Ceram. Int. 46 171
[9] Tyrman M, Pasko A, Barriere D L, Olivier, Mazaleyrat, Frédéric and Razek 2015 Eur. Phys. J. Appl. Phys. 72 20601
[10] Huang T, Peng L, Li L, Wang R, Hu Y and Tu X 2016 J. Rare. Earth. 34 148
[11] Liu R, Wang L, Xu Z, Qin C, Li Z, Yu X, Liu D, Gong H, Zhao T, Sun J, Hu F and Shen B 2022 Mate. Today Commun. 32 103996
[12] Li L Z, Sokolov A, Yu C J, Li L Z, Sokolov A, Yu C J, Li Q F, Li Q F, Qian K, Vincent G and Harris 2021 Ceram. Int. 47 25514
[13] Selvi K T and Priya M 2020 J. Supercond Nov. Magn. 33 713
[14] Yu X, Wang L, Liu R, Zhou N, Xu Z, Gong H, Zhao T, Sun J, Hu F and Shen B 2023 Ceram. Int. 49 10499
[15] Liu R, Wang L, Yu X, Xu Z, Gong H, Zhao T, Hu F and Shen B 2023 Ceram. Int. 49 1888
[16] Nagasawa N, Oura M, Ikeda S, Waki T, Tabata Y, Nakamura H and Kobayashi H 2020 J. Appl. Phys. 128 133901
[17] Qin C, Sun Y, Li Z, Liu R, Jing X, Wang L, Zhao T and Gong H 2023 Arab. J. Chem. 16 105092
[18] Teh G B, Nagalingam S and Jefferson D A 2007 Mater. Chem. Phys. 101 158
[19] Singh H K, Mohapatra P P, Dobbidi P and Chittari B L 2023 J. Phys. D: Appl. Phys. 56 415304
[20] Chen D, Zeng D and Liu Z 2016 Mater. Res. Express 3 045002
[21] Kreisel J, Lucazeau G and Vincent H 1998 Int. J. Quantum Chem. 137 127
[22] Liu C, Kan X, Hu F, Liu X, Feng S, Hu J, Wang W, Rehman K M U, Shezad M, Zhang C, Li H, Zhou S and Wu Q 2019 J. Alloys Compd. 785 452
[23] Waki T, Takao K, Tabata Y and Nakamura H 2020 J. Solid State Chem. 282 121071
[24] Sharma M, Kashyap S C and Gupta H C 2014 Phys. B 448 24
[25] Huang K, Yu J, Zhang L, Xu J, Yang Z, Liu C, Wang W and Kan X 2019 J. Alloys Compd. 803 971
[26] Shoushtari M Z, Ghahfarokhi S E M and Ranjbar F 2012 Advanced Materials Research 622-623 925
[27] Bercoff P G, Herme C and Jacobo S E 2009 J. Magn. Magn. Mater. 321 2245
[28] Kreisel J, Vincent H, Tasset F, Pate M and Ganne J P 2001 J. Magn. Magn. Mater. 224 17 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
