[11a-N301-1~11] 6.6 Probe Microscopy

[11a-N301-3] Development of scanning diamond NV-center magnetic imaging probe with oblique light incidence confocal microscope

〇Kunitaka Hayashi¹, Aoi Ideguchi¹, Siyue Zhang¹, Kenichi Nakashita¹, Seong-Woo Kim², Koji Koyama², Takeshi Miura³, Toshiaki Suzuki³, Katsuya Iwaya³, Yuta Kainuma¹, Masashi Akabori¹, Toshu An¹ (1.JAIST, 2.Adamant Namiki, 3.UNISOKU)

Keywords:scanning probe microscopy, NV center in diamond, magnetic imaging

We report the development of a scanning diamond pillar NV center probe and the imaging of stray magnetic field of the CoFe island surface. A diamond pillar with a tip diameter of about 4 µm is attached to a quartz tuning fork type AFM probe. Laser optics that measure magnetic fields by the ODMR method have an incident angle tilted 30 ° with respect to the sample surface. When the frequency spectrum obtained while scanning the sample surface was mapped at 2.95 GHz, a change in fluorescence intensity was observed according to the magnetic structure.