Experimental approaches for micromagnetic coercivity analysis of advanced permanent magnet materials
Source abstract
Abstract
Although coercivity is one of the fundamental properties of permanent magnets, it has not been well understood. In this paper, micromagnetics and thermal activation magnetization reversal theories are briefly reviewed, and then our recent macroscopic and microscopic experimental approaches for thermally activated magnetization reversal in advanced Nd-Fe-B hot-deformed magnets are explained. Our experimental results are well supported by the recent atomistic spin model calculations. Moreover, the systematic micromagnetics simulation study makes much clearer the physical picture of the thermally activated magnetization reversal process in permanent magnets.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic properties of thin films · Magnetic Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, Japan
Center for Spintronics Research Network (CSRN), Tohoku University, Sendai, Japan
Elements Strategy Initiative Center for Magnetic Materials (ESICMM), National Institute for Materials Science (NIMS), Tsukuba, Japan
Funding
the Management Expenses Grants for National Universities Corporations, MEXT · ESICMM
References (50)
Show source-provided references
1. 10.1016/j.scriptamat.2012.06.03810.1016/j.scriptamat.2012.06.038 ↗
2. 10.3379/msjmag.1504R00410.3379/msjmag.1504R004 ↗
3. 10.3379/msjmag.1404R00110.3379/msjmag.1404R001 ↗
4. 10.1016/j.scriptamat.2010.08.02110.1016/j.scriptamat.2010.08.021 ↗
5. 10.1016/j.scriptamat.2014.03.00210.1016/j.scriptamat.2014.03.002 ↗
6. 10.2320/jinstmet.76.1210.2320/jinstmet.76.12 ↗
7. 10.1063/1.481339910.1063/1.4813399 ↗
8. Nakamura K, Yamazaki T. Japan Patent 2015: 5767788.
9. 10.1016/j.scriptamat.2015.10.04210.1016/j.scriptamat.2015.10.042 ↗
10. 10.1063/1.493727410.1063/1.4937274 ↗
11. 10.1002/pssb.222144013410.1002/pssb.2221440134 ↗
12. 10.1103/RevModPhys.17.1510.1103/RevModPhys.17.15 ↗
13. 10.1063/1.33667110.1063/1.336671 ↗
14. 10.1109/20.1164610.1109/20.11646 ↗
15. 10.1063/1.33875110.1063/1.338751 ↗
16. 10.1016/0304-8853(87)90185-510.1016/0304-8853(87)90185-5 ↗
17. 10.1016/0304-8853(90)90479-A10.1016/0304-8853(90)90479-A ↗
18. Givord D · J Magn Magn Mater · 2003 · 1 · 258
19. 10.1063/1.491654210.1063/1.4916542 ↗
20. 10.1007/s11837-015-1415-710.1007/s11837-015-1415-7 ↗
21. 10.1016/j.scriptamat.2017.11.01210.1016/j.scriptamat.2017.11.012 ↗
22. 10.1103/PhysRevB.94.17443310.1103/PhysRevB.94.174433 ↗
23. 10.1038/s41524-020-0325-610.1038/s41524-020-0325-6 ↗
24. 10.1063/1.491394010.1063/1.4913940 ↗
25. 10.1063/1.512983010.1063/1.5129830 ↗
26. 10.1016/j.actamat.2020.09.07410.1016/j.actamat.2020.09.074 ↗
27. Brown WF · 1963
28. 10.1002/pssb.1966016010210.1002/pssb.19660160102 ↗
29. 10.1109/20.70385110.1109/20.703851 ↗
30. 10.1063/1.33735410.1063/1.337354 ↗
31. 10.1016/B978-012093270-2/50060-X10.1016/B978-012093270-2/50060-X ↗
32. 10.1016/0375-9601(74)90521-010.1016/0375-9601(74)90521-0 ↗
33. 10.1103/PhysRevLett.34.123410.1103/PhysRevLett.34.1234 ↗
34. 10.1109/TMAG.1979.106031310.1109/TMAG.1979.1060313 ↗
35. 10.1063/1.33061410.1063/1.330614 ↗
36. 10.1016/0304-8853(90)90162-J10.1016/0304-8853(90)90162-J ↗
37. 10.1016/0304-8853(88)90202-810.1016/0304-8853(88)90202-8 ↗
38. 10.1103/PhysRevB.50.384910.1103/PhysRevB.50.3849 ↗
39. 10.1088/0370-1298/62/9/30310.1088/0370-1298/62/9/303 ↗
40. 10.1088/0305-4608/14/8/00510.1088/0305-4608/14/8/005 ↗
41. 10.1016/S0304-8853(02)00146-410.1016/S0304-8853(02)00146-4 ↗
42. 10.1109/TMAG.1981.106175510.1109/TMAG.1981.1061755 ↗
43. 10.1063/1.35828210.1063/1.358282 ↗
44. 10.1063/1.218585110.1063/1.2185851 ↗
45. 10.1063/1.172948910.1063/1.1729489 ↗
46. 10.1080/1364281830822828810.1080/13642818308228288 ↗
47. 10.1088/1367-2630/aa808210.1088/1367-2630/aa8082 ↗
48. 10.1063/1.489918610.1063/1.4899186 ↗
49. 10.1063/1.33661110.1063/1.336611 ↗
50. 10.1063/1.486338010.1063/1.4863380 ↗