Please wait a minute...
Chin. Phys. B, 2024, Vol. 33(3): 037507    DOI: 10.1088/1674-1056/ad1d4c
RAPID COMMUNICATION Prev   Next  

Coercivity mechanism of La-Nd-Fe-B films with Y spacer layer

Jun Ma(马俊)1,2, Xiao-Tian Zhao(赵晓天)1,†, Wei Liu(刘伟)1,‡, Yang Li(李阳)1,2, Long Liu(刘龙)1,2, Xin-Guo Zhao(赵新国)1, and Zhi-Dong Zhang(张志东)1
1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
2 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
Abstract  The effect of the Y spacer layer on the phase composition, coercivity, and magnetization reversal processes of La-Nd-Fe-B films has been investigated. The addition of a 10 nm Y spacer layer increases the coercivity of the film to 1.36 T at 300 K and remains 0.938 T at 380 K. As the thickness of the Y spacer layer increases, Y participates in the formation of the main phase in the film, and further regulates the formation of La-B phases. The results of the first-order reversal curve (FORC) and micromagnetic fitting show that the coercivity of all the films is dominated by nucleation mechanism. The c-axis preferred orientation, good magnetic microstructure parameters and the largest dipole interaction enhance the coercivity. Therefore, the introduction of the Y spacer layer can be an effective way to improve the coercivity of La-Nd-Fe-B film over a wide temperature range of 150 K-380 K.
Keywords:  La-Nd-(Y)-Fe-B films      magnetization reversal mechanisms      coercivity      multilayers  
Received:  17 November 2023      Revised:  31 December 2023      Accepted manuscript online:  11 January 2024
PACS:  75.60.Jk (Magnetization reversal mechanisms)  
  75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)  
  75.50.Vv (High coercivity materials)  
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2021YFB3500303) and the National Natural Science Foundation of China (Grant Nos. 52031014 and 51971219).
Corresponding Authors:  Xiao-Tian Zhao, Wei Liu     E-mail:  xtzhao@imr.ac.cn;wliu@imr.ac.cn

Cite this article: 

Jun Ma(马俊), Xiao-Tian Zhao(赵晓天), Wei Liu(刘伟), Yang Li(李阳), Long Liu(刘龙), Xin-Guo Zhao(赵新国), and Zhi-Dong Zhang(张志东) Coercivity mechanism of La-Nd-Fe-B films with Y spacer layer 2024 Chin. Phys. B 33 037507

[1] Rodewald W, Wall B, Katter M and Uestuener K 2002 IEEE Trans. Magn. 38 2955
[2] Sugimoto S 2011 J. Phys. D. Appl. Phys. 44 064001
[3] Coey J M D 2012 Scr. Mater. 67 524
[4] Jin J, Ma T, Zhang Y, Bai G and Yan M 2016 Sci. Rep. 6 32200
[5] Fan X, Ding G, Chen K, Guo S, You C, Chen R, Lee D and Yan A 2018 Acta Mater. 154 343
[6] Yan M, Jin J and Ma T 2019 Chin. Phys. B 28 077507
[7] Liu Y, Jin J, Ma T, Peng B, Wang X and Yan M 2021 J. Mater. Sci. Technol. 62 195
[8] Hirosawa S, Matsuura Y, Yamamoto H and Fujimura S 1986 J. Appl. Phys. 59 873
[9] Fan X, Chen K, Guo S, Chen R, Lee D, Yan A and You C 2017 Appl. Phys. Lett. 110 172405
[10] Zhang C H, Luo Y, Yu D B, Quan N T, Wu G Y, Dou Y K, Hu Z and Wang Z L 2020 Rare Met. 39 55
[11] Cui W B, Takahashi Y K and Hono K 2011 Acta Mater. 59 7768
[12] Ye Z X, Zhao X T, Liu W, Liu L, Wu J X, Li Y, Ma J, Ju H Z, Song Y H and Zhang Z D 2023 Surfaces and Interfaces 37 102697
[13] Cui W B, Sepehri-Amin H, Takahashi Y K and Hono K 2015 Acta Mater. 84 405
[14] Dempsey N M, Woodcock T G, Sepehri-Amin H, Zhang Y, Kennedy H, Givord D, Hono K and Gutfleisch O 2013 Acta Mater. 61 4920
[15] Li Z, Liu W, Zha S, Li Y, Wang Y, Zhang D, Yue M and Zhang J 2015 J. Rare Earths 33 961
[16] Liu L, Liu W, Song Y H, Zhao X T, Chang Y, Li S K, Liang Y M, Li Y, Zhao X G and Zhang Z D 2019 J. Phys. D: Appl. Phys. 52 145001
[17] Liu X B, Altounian Z, Huang M, Zhang Q and Liu J P 2013 J. Alloys Compd. 549 366
[18] Ding G, Liao S, Di J, Zheng B, Guo S, Chen R and Yan A 2020 Acta Mater. 194 547
[19] Hadjipanayis G C, Tao Y F and Gudimetta K 1985 Appl. Phys. Lett. 47 757
[20] Kwon A R, Fähler S, Neu V and Schultz L 2006 J. Magn. Magn. Mater. 302 252
[21] Li Y, Zhao X T, Liu W, Ma J, Liu L, Song Y H, Zhao X G and Zhang Z D 2021 J. Magn. Magn. Mater. 540 168435
[22] Jin J, Zhang Y, Bai G, Qian Z, Wu C, Ma T, Shen B and Yan M 2016 Sci. Rep. 6 30194
[23] Kronmüller H, Durst K D and Sagawa M 1988 J. Magn. Magn. Mater. 74 291
[24] Kronmüller H and Schrefl T 1994 J. Magn. Magn. Mater. 129 66
[25] Kou X C, Kronmüller H, Givord D and Rossignol M F 1994 Phys. Rev. B 50 3849
[26] Pike C R, Ross C A, Scalettar R T and Zimanyi G 2005 Phys. Rev. B 71 134407
[27] Alikhani M, Ramazani A, Almasi Kashi M, Samanifar S and Montazer A H 2016 J. Magn. Magn. Mater. 414 158
[28] Pike C R, Roberts A P and Verosub K L 1999 J. Appl. Phys. 85 6660
[29] Davies J E, Hellwig O, Fullerton E E, Denbeaux G, Kortright J B and Liu K 2004 Phys. Rev. B 70 224434
[30] Ma J, Zhao X, Liu W, Li Y, Liu L, Song Y, Xie Y, Zhao X and Zhang Z 2021 Materials 14 4680
[31] Gilbert D A, Zimanyi G T, Dumas R K, Winklhofer M, Gomez A, Eibagi N, Vicent J L and Liu K 2014 Sci. Rep. 4 4204
[1] Effect of CeO2 doping on the coercivity of 2:17 type SmCo magnets
Xiao-Lei Gao(高晓磊), Zhuang Liu(刘壮), Guang-Qing Wang(王广庆), Chao-Qun Zhu(竺超群), Wen-Xin Cheng(程文鑫), Ming-Xiao Zhang(张明晓), Xin-Cai Liu(刘新才), Ren-Jie Chen(陈仁杰), and A-Ru Yan(闫阿儒). Chin. Phys. B, 2023, 32(9): 097504.
[2] Micromagnetic study of magnetization reversal in inhomogeneous permanent magnets
Zhi Yang(杨质), Yuanyuan Chen(陈源源), Weiqiang Liu(刘卫强), Yuqing Li(李玉卿), Liying Cong(丛利颖), Qiong Wu(吴琼), Hongguo Zhang(张红国), Qingmei Lu(路清梅), Dongtao Zhang(张东涛), and Ming Yue(岳明). Chin. Phys. B, 2023, 32(4): 047504.
[3] High repetition granular Co/Pt multilayers with improved perpendicular remanent magnetization for high-density magnetic recording
Zhi Li(李智), Kun Zhang(张昆), Ao Du(杜奥), Hongchao Zhang(张洪超), Weibin Chen(陈伟斌), Ning Xu(徐宁), Runrun Hao(郝润润), Shishen Yan(颜世申), Weisheng Zhao(赵巍胜), and Qunwen Leng(冷群文). Chin. Phys. B, 2023, 32(2): 026803.
[4] Room-temperature creation and manipulation of skyrmions in MgO/FeNiB/Mo multilayers
Wen-Hui Liang(梁文会), Jian Su(苏鉴), Yu-Tong Wang(王雨桐), Ying Zhang(张颖), Feng-Xia Hu(胡凤霞), and Jian-Wang Cai(蔡建旺). Chin. Phys. B, 2023, 32(12): 127504.
[5] Coercivity enhancement of sintered Nd-Fe-B magnets by grain boundary diffusion with Pr80-xAlxCu20 alloys
Zhe-Huan Jin(金哲欢), Lei Jin(金磊), Guang-Fei Ding(丁广飞), Shuai Guo(郭帅), Bo Zheng(郑波),Si-Ning Fan(樊思宁), Zhi-Xiang Wang(王志翔), Xiao-Dong Fan(范晓东), Jin-Hao Zhu(朱金豪),Ren-Jie Chen(陈仁杰), A-Ru Yan(闫阿儒), Jing Pan(潘晶), and Xin-Cai Liu(刘新才). Chin. Phys. B, 2023, 32(1): 017505.
[6] Strengthening and softening in gradient nanotwinned FCC metallic multilayers
Yuanyuan Tian(田圆圆), Gangjie Luo(罗港杰), Qihong Fang(方棋洪), Jia Li(李甲), and Jing Peng(彭静). Chin. Phys. B, 2022, 31(6): 066204.
[7] Magnetic properties and resistivity of a 2:17-type SmCo magnet doped with ZrO2
Qi-Qi Yang(杨棋棋), Zhuang Liu(刘壮), Chao-Yue Zhang(张超越), Hai-Chen Wu(吴海辰), Xiao-Lei Gao(高晓磊), Yi-Long Ma(马毅龙), Ren-Jie Chen(陈仁杰), and A-Ru Yan(闫阿儒). Chin. Phys. B, 2021, 30(7): 077504.
[8] Texture analysis of ultra-high coercivity Sm2Co7 hot deformation magnets
Qiang Ma(马强), Meishuang Jia(贾美爽), Zhifeng Hu(胡智峰), Ming Yue(岳明), Yanli Liu(刘艳丽), Tongyun Zhao(赵同云), and Baogen Shen(沈保根). Chin. Phys. B, 2021, 30(4): 047505.
[9] Coercivity and microstructure of sintered Nd-Fe-B magnets diffused with Pr-Co, Pr-Al, and Pr-Co-Al alloys
Lei Jin(金磊), Zhe-Huan Jin(金哲欢), Jin-Hao Zhu(朱金豪), Guang-Fei Ding(丁广飞), Bo Zheng(郑波) , Shuai Guo(郭帅), Ren-Jie Chen(陈仁杰), A-Ru Yan(闫阿儒), and Xin-Cai Liu(刘新才). Chin. Phys. B, 2021, 30(2): 027503.
[10] Effect of annealing temperature on coercivity of Nd-Fe-B magnets with TbFeAl doping by process of hot-pressing
Ze-Teng Shu(舒泽腾), Bo Zheng(郑波), Guang-Fei Ding(丁广飞), Shi-Cong Liao(廖是聪), Jing-Hui Di(邸敬慧), Shuai Guo(郭帅), Ren-Jie Chen(陈仁杰), A-Ru Yan(闫阿儒), Lei Shi(石磊). Chin. Phys. B, 2020, 29(5): 057501.
[11] Three- and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe14B/α-Fe multilayers with out-of-plane easy axes
Qian Zhao(赵倩), Xin-Xin He(何鑫鑫), Francois-Jacques Morvan(李文瀚), Guo-Ping Zhao(赵国平), Zhu-Bai Li(李柱柏). Chin. Phys. B, 2020, 29(3): 037501.
[12] High performance RE–Fe–B sintered magnets with high-content misch metal by double main phase process
Yan-Li Liu(刘艳丽), Qiang Ma(马强), Xin Wang(王鑫), Jian-Jun Zhou(周建军), Tong-Yun Zhao(赵同云), Feng-Xia Hu(胡凤霞), Ji-Rong Sun(孙继荣), and Bao-Gen Shen(沈保根)†. Chin. Phys. B, 2020, 29(10): 107504.
[13] Thermal stability, crystallization, and magnetic properties of FeNiBCuNb alloys
Zhe Chen(陈哲), Qian-Ke Zhu(朱乾科), Shu-Ling Zhang(张树玲), Ke-Wei Zhang(张克维), Yong Jiang(姜勇). Chin. Phys. B, 2019, 28(8): 087502.
[14] Coercivity mechanisms in nanostructured permanent magnets
G P Zhao(赵国平), L Zhao(赵莉), L C Shen(沈来川), J Zou(邹静), L Qiu(邱雷). Chin. Phys. B, 2019, 28(7): 077505.
[15] Grain boundary restructuring and La/Ce/Y application in Nd-Fe-B magnets
Mi Yan(严密), Jiaying Jin(金佳莹), Tianyu Ma(马天宇). Chin. Phys. B, 2019, 28(7): 077507.
No Suggested Reading articles found!