TY - JOUR
T1 - Electron holography of magnetic field generated by a magnetic recording head
AU - Goto, Takayuki
AU - Jeong, Jong Seok
AU - Xia, Weixing
AU - Akase, Zentaro
AU - Shindo, Daisuke
AU - Hirata, Kei
N1 - Funding Information:
This work was performed under the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”, and partly supported by a Grant-in-Aid for Young Scientists (B 22760528) from the Japan Society for the Promotion of Science.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2013/6
Y1 - 2013/6
N2 - The magnetic field generated by a magnetic recording head is evaluated using electron holography. A magnetic recording head, which is connected to an electric current source, is set on the specimen holder of a transmission electron microscope. Reconstructed phase images of the region around the magnetic pole show the change in the magnetic field distribution corresponding to the electric current applied to the coil of the head. A simulation of the magnetic field, which is conducted using the finite element method, reveals good agreement with the experimental observations.
AB - The magnetic field generated by a magnetic recording head is evaluated using electron holography. A magnetic recording head, which is connected to an electric current source, is set on the specimen holder of a transmission electron microscope. Reconstructed phase images of the region around the magnetic pole show the change in the magnetic field distribution corresponding to the electric current applied to the coil of the head. A simulation of the magnetic field, which is conducted using the finite element method, reveals good agreement with the experimental observations.
KW - electron holography
KW - finite element method
KW - in situ observation
KW - magnetic field
KW - magnetic recording head
KW - transmission electron microscopy
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U2 - 10.1093/jmicro/dfs090
DO - 10.1093/jmicro/dfs090
M3 - Article
C2 - 23291267
AN - SCOPUS:84879128408
SN - 2050-5698
VL - 62
SP - 383
EP - 389
JO - Microscopy (Oxford, England)
JF - Microscopy (Oxford, England)
IS - 3
ER -