| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic probe for achieving a high spatial resolution in the order of several nm. SOLUTION: When a paramagnetic seed 31 is fixed to the inside of the tip of a tubular vessel 34 filled with paramagnetic colloid particle dispersion and the tip is brought closer to a magnetic field, a paramagnetic colloid particle 32 is coagulated in a chain with the paramagnetic seed 31 as a starting point, and the length of the coagulation depends on the strength of the magnetic field. When the coagulation of the paramagnetic colloid particle 32 formed at the tip of the tubular vessel is observed by utilizing the phenomenon, magnetism is detected and a new magnetic probe 30 utilizing a mechanism totally different from that of the conventional magnetic probe 30 is composed. The magnetic probe 30 detects magnetism even if ultra-fine particles of a grain size of approximately several nm are used as the paramagnetic seed 31 fixed to the inside of the tip of the tubular vessel 34, thus achieving a high space resolution in the order of several nm. COPYRIGHT: (C)2011,JPO&INPIT
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