Magnetic probe
View Patent ↗A magnetic probe includes a tubular container, the inside of which can be observed and at least one end of which is closed, a paramagnetic seed which is fixed to an end of the tubular container, and a paramagnetic colloidal particle dispersion liquid that is filled in the tubular container.
1. A magnetic probe comprising:
a tubular container, the inside of which can be observed and at least one end of which is closed;
a paramagnetic seed which is fixed to an end of the tubular container and which comprises a carbon nanotube and a paramagnetic powder that is filled inside the carbon nanotube;
a paramagnetic colloidal particle dispersion liquid that is filled in the tubular container; and
a means for measuring a light transmittance of the tubular container.
2. A magnetic probe comprising:
a tubular container, the inside of which can be observed and at least one end of which is closed;
a paramagnetic seed which is fixed to an end of the tubular container; and
a paramagnetic colloidal particle dispersion liquid that is filled in the tubular container.
3. The magnetic probe according to claim 2 , wherein the paramagnetic seed comprises an acicular particle.
4. The magnetic probe according to claim 2 , wherein the paramagnetic seed comprises a carbon nanotube and a paramagnetic powder that is filled inside the carbon nanotube.
5. The magnetic probe according to claim 2 , further comprising:
a means for measuring a light transmittance of the tubular container.
6. A magnetic recording/reproducing apparatus comprising the magnetic probe according to claim 2 .
7. A magnetic microscope comprising the magnetic probe according to claim 2 .
8. A method of detecting magnetism comprising:
disposing a magnetic probe comprising a tubular container, the inside of which can be observed and at least one end of which is closed, a paramagnetic seed which is fixed to an end of the tubular container, and a dispersion liquid of paramagnetic colloidal particles, the dispersion liquid being filled in the tubular container;
allowing the paramagnetic colloidal particles to sequentially adhere to the paramagnetic seed; and
measuring a light transmittance of the tubular container.