scholarly journals Lorentz Microscopy of Magnetic Domain-Wall Pinning on Artificially Introduced Holes in Electrical Steel Sheets

2012 ◽  
Vol 53 (7) ◽  
pp. 1330-1333 ◽  
Author(s):  
Yoshikatsu Inada ◽  
Zentaro Akase ◽  
Daisuke Shindo ◽  
Akira Taniyama
Keyword(s):  
Domain Wall ◽  
Electrical Steel ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Lorentz Microscopy ◽  
Steel Sheets ◽  
Domain Wall Pinning ◽  
Electrical Steel Sheets

scholarly journals Magnetic Domain Structures in Electrical Steel Sheets Studied by Lorentz Microscopy and Electron Holography

2005 ◽  
Vol 46 (5) ◽  
pp. 974-977 ◽  
Author(s):  
Zentaro Akase ◽  
Young-Gil Park ◽  
Daisuke Shindo ◽  
Toshiro Tomida ◽  
Hiroyosi Yashiki ◽  
...  
Keyword(s):  
Electrical Steel ◽  
Magnetic Domain ◽  
Electron Holography ◽  
Lorentz Microscopy ◽  
Steel Sheets ◽  
Domain Structures ◽  
Electrical Steel Sheets

Observations of Magnetic Domain Structure Change in Nd2Fe14B Magnets at Elevated Temperature with External Magnetic Field by Lorentz Microscopy

2015 ◽  
Vol 1754 ◽  
pp. 31-36 ◽  
Author(s):  
Toshimasa Suzuki ◽  
Koichi Kawahara ◽  
Haruka Tanaka ◽  
Kimihiro Ozaki
Keyword(s):  
Elevated Temperature ◽  
Domain Wall ◽  
Wall Motion ◽  
Magnetic Domain ◽  
Domain Wall Motion ◽  
Magnetic Domain Wall ◽  
Lorentz Microscopy ◽  
Pinning Effect ◽  
In Situ Observations

ABSTRACTIn this study, we conducted the in-situ observations of the magnetic domain structure change in Nd2Fe14B magnets at elevated temperature by transmission electron microscopy (TEM) / Lorentz microscopy. The in-situ observations in Nd2Fe14B magnets revealed that the magnetization reversal easily occurred at the elevated temperature. At more than 180°C, the magnetic domain wall motion could be observed by applying the magnetic field of less than 20 mT. The motion of the magnetic domain wall was discontinuous and the domain wall jumped to one grain boundary to the neighboring grain boundary at 180°C. On the other hand, the continuous domain wall motion within grain interior as well as discontinuous domain wall motion was observed at 225°C, and some grain boundaries showed still strong pinning effect even at 225°C. The temperature dependence of the pinning effect of grain boundaries would not uniform.

scholarly journals Reconfigurable magnetic domain wall pinning using vortex-generated magnetic fields

2017 ◽  
Vol 110 (18) ◽  
pp. 182404 ◽  
Author(s):  
Aaron C. H. Hurst ◽  
Joshua A. Izaac ◽  
Fouzia Altaf ◽  
Vincent Baltz ◽  
Peter J. Metaxas
Keyword(s):  
Magnetic Fields ◽  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Domain Wall Pinning

Switchable field-tuned control of magnetic domain wall pinning along Co microwires by 3D e-beam lithographed structures

2016 ◽  
Vol 400 ◽  
pp. 213-218 ◽  
Author(s):  
C. Blanco-Roldán ◽  
C. Quirós ◽  
G. Rodriguez-Rodriguez ◽  
M. Vélez ◽  
J.I. Martín ◽  
...  
Keyword(s):  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Domain Wall Pinning

scholarly journals In-situ Observations of Interaction of Magnetic Domain Wall with Grain Boundaries by Lorentz Microscopy

Materia Japan ◽  
2004 ◽  
Vol 43 (12) ◽  
pp. 1001-1001
Author(s):  
Sadahiro Tsurekawa ◽  
Tadao Watanabe ◽  
Yohei Ando ◽  
Koichi Kawahara
Keyword(s):  
Domain Wall ◽  
Grain Boundaries ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Lorentz Microscopy

Influence of magnetic domain wall orientation on Barkhausen noise and magneto-mechanical behavior in electrical steel

2019 ◽  
Vol 52 (26) ◽  
pp. 265001 ◽  
Author(s):  
Fasheng Qiu ◽  
Matic Jovičević Klug ◽  
Guiyun Tian ◽  
Pan Hu ◽  
Jeffrey McCord
Keyword(s):  
Domain Wall ◽  
Mechanical Behavior ◽  
Electrical Steel ◽  
Magnetic Domain ◽  
Barkhausen Noise ◽  
Magnetic Domain Wall
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