TY - JOUR
T1 - Magnetic flux density measurements from narrow grain boundaries produced in sintered permanent magnets
AU - Cho, Youngji
AU - Lee, Sujin
AU - Murakami, Yasukazu
N1 - Funding Information:
ESICMM (12016013 funded by Ministry of Education, Culture, Sports, Science and Technology), CREST (JPMJCR1664 funded by Japan Science and Technology Agency), KAKENHI (JP18H03845 funded by Japan Society for the Promotion of Science).
Publisher Copyright:
© 2020 The Author(s) 2020.
PY - 2021/2/1
Y1 - 2021/2/1
N2 - This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd-Fe-B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.
AB - This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd-Fe-B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.
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U2 - 10.1093/jmicro/dfaa032
DO - 10.1093/jmicro/dfaa032
M3 - Article
C2 - 32572498
AN - SCOPUS:85102212698
SN - 2050-5698
VL - 70
SP - 17
EP - 23
JO - Microscopy
JF - Microscopy
IS - 1
ER -