1. Observation of Magnetic Nanodot Arrays Using Near-Field Polarization Microscope
- Author
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Tao Jin, Miftakhul Huda, Sumio Hosaka, Zulfakri bin Mohamad, You Yin, Hui Zhang, Ryosuke Takahashi, and Vu Le Mine Nhat
- Subjects
Scanning Hall probe microscope ,Microscope ,Materials science ,business.industry ,Mechanical Engineering ,Nanotechnology ,Near and far field ,Magnetic field ,law.invention ,Magnetization ,Scanning probe microscopy ,Mechanics of Materials ,law ,Optoelectronics ,General Materials Science ,Nanodot ,Magnetic force microscope ,business - Abstract
In this study, we tried to develop the scanning near-field polarization microscope (SNPM) and challenge to observe magnetization of the magnetic nanodot in the arrays. The CoPt dot arrays with a size of 25 nm and a pitch of 150 nm were adopted. The nanodots change contrast after changing the direction of the external magnetic field. This implied that our prototyped SNPM system had the resolution of less than 25 nm. So, it is demonstrated that SNPM is an effective tool for the observation of magnetization of the magnetic nanodot on the nanometer scale.
- Published
- 2015
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