TY - JOUR
T1 - Transmission electron microscopy on thin film of high density magnetic composite prepared by FIB method
AU - Kobayashi, Yuko
AU - Park, Young Gil
AU - Shindo, Daisuke
AU - Tajima, Shin
N1 - Funding Information:
The authors wish to thank Dr. Y. Gao for the useful discussion. They also wish to thank Mr. T. Suzuki, JEOL for the experimental support for the FIB method. The specimen preparation with the FIB was funded by the financial support from 21st Century COE Program ‘Tohoku University International Center of Research and Education for Materials’.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2004
Y1 - 2004
N2 - A thin specimen of a high density magnetic composite (HDMC), which is a type of powder magnetic cores was prepared for transmission electron microscopy (TEM) using a focused ion beam (FIB) method. A homogeneous thin film containing an insulator boundary between the constituent Fe powders was obtained successfully. Using this thin film, detailed flow of magnetic flux was visualized by electron holography, and the magnetic flux density was estimated to be 1.73 ± 0.09 T being consistent with that of a bulk HDMC (1.70 T). Moreover, through Lorentz microscopy, the characteristic magnetization process of HDMC was observed by applying the magnetic field up to approximately 8 kA/m.
AB - A thin specimen of a high density magnetic composite (HDMC), which is a type of powder magnetic cores was prepared for transmission electron microscopy (TEM) using a focused ion beam (FIB) method. A homogeneous thin film containing an insulator boundary between the constituent Fe powders was obtained successfully. Using this thin film, detailed flow of magnetic flux was visualized by electron holography, and the magnetic flux density was estimated to be 1.73 ± 0.09 T being consistent with that of a bulk HDMC (1.70 T). Moreover, through Lorentz microscopy, the characteristic magnetization process of HDMC was observed by applying the magnetic field up to approximately 8 kA/m.
KW - Electron holography
KW - Focused ion beam method
KW - Lorentz microscopy
KW - Magnetic domain structure
KW - Powder magnetic core
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U2 - 10.1093/jmicro/dfh072
DO - 10.1093/jmicro/dfh072
M3 - Article
C2 - 15582951
AN - SCOPUS:13444260046
SN - 2050-5698
VL - 53
SP - 485
EP - 487
JO - Microscopy (Oxford, England)
JF - Microscopy (Oxford, England)
IS - 5
ER -