Presentation Information
[18p-W9_324-3]Magnetic noise imaging from Fe3O4 superparamagnetic core-shell particles using a scanning NV probe microscope
〇(M2)Shunsuke Uesugi1, Dwi Prananto1, Kunitaka Hayashi1, Toshu An1 (1.JAIST)
Keywords:
diamond NV center,Atomic Force Microscope
We have developed a scanning NV probe microscope by combining a probe with an ensemble of NV centers attached to the tip apex of a tungsten needle and an atomic force microscope based on a quartz oscillator. First, we tested a measurement of the magnetic noise from superparamagnetic core-shell particles of Fe3O4 through T1 measurement with ensemble NV centers in bulk diamond. Next, we try to measure magnetic noise from a superparamagnetic particle of Fe3O4 in the shell part by using a scanning NV probe. We will report on the results obtained in more detail.