TY - JOUR
T1 - Nanosized magnetization measurement of an isolated Co-Fe circular dot using a MFM tip
AU - Endo, Yasushi
AU - Fujimoto, Hideki
AU - Kawamura, Yoshio
AU - Nakatani, Ryoichi
AU - Yamamoto, Masahiko
N1 - Funding Information:
This work was partly supported by a Grant-in-Aid for Scientific Research (S), Exploratory Research and Encouragement of Young Scientists (B) from the Japanese Ministry of Education, Culture, Sports, Science and Technology. This work was also partially supported by “Priority Assistance of the Formation of Worldwide Renowned Centers of Research—The 21st Century COE program (Project: Center of Excellence for Advanced Structural and Functional Materials Design)” from the Japanese Ministry of Education, Culture, Sports, Science and Technology.
PY - 2007/3
Y1 - 2007/3
N2 - We used our newly proposed measurement method, which employs a magnetic force microscopy (MFM) tip as a detector, to investigate the magnetic state of an isolated Co-Fe dot. As the magnetic field is changed from positive to negative or vice versa, the phases (stray fields) change for all points within the dot that are perpendicular to the magnetic filed. In particular, a sharp jump is observed at the edge of the dot. These results are attributed to the movement of the vortex core in the dot and the annihilation of the vortex core in the dot edge.
AB - We used our newly proposed measurement method, which employs a magnetic force microscopy (MFM) tip as a detector, to investigate the magnetic state of an isolated Co-Fe dot. As the magnetic field is changed from positive to negative or vice versa, the phases (stray fields) change for all points within the dot that are perpendicular to the magnetic filed. In particular, a sharp jump is observed at the edge of the dot. These results are attributed to the movement of the vortex core in the dot and the annihilation of the vortex core in the dot edge.
KW - MFM
KW - Magnetization reveral
KW - Nanosized magnet
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U2 - 10.1016/j.jmmm.2006.10.1031
DO - 10.1016/j.jmmm.2006.10.1031
M3 - Article
AN - SCOPUS:33847619671
SN - 0304-8853
VL - 310
SP - 2436
EP - 2438
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 2 SUPPL. PART 3
ER -