NDLI: A New Method: Study on Individual Magnetic Nanoparticles by Frequency-Modulated Magnetic Force Microscopy

Content Provider	IEEE Xplore Digital Library
Author	Xiang Li Zhenghua Li Deng Pan Yoshimura, S. Saito, H.
Copyright Year	1965
Abstract	Individual magnetic Fe₃O₄ nanoparticles were imaged using the developed frequency-modulated magnetic force microscopy (FM-MFM) technique. High-resolution imaging of ac magnetic field from individual magnetic nanoparticles was demonstrated by FM-MFM with a high-coercivity FePt tip. It was found that the amplitude and phase images of ac magnetic field were obtained separately using the technique with a lock-in amplifier. The distribution of magnetic field gradient of the individual nanoparticles is clearly presented. It was observed that magnetic nanoparticles can be more precisely detected by FM-MFM. The results are significant for study of the real magnetic field distribution of individual magnetic nanoparticles (~20 nm), which provide some valuable information for the analysis of nanoscale magnetic features.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	906144
File Format	PDF
ISSN	00189464
Volume Number	50
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanoparticles Magnetic resonance imaging Magnetic domains Magnetic separation Soft magnetic materials Magnetostatics Magnetic hysteresis magnetic domain structures AC magnetic field frequency-modulated magnetic force microscopy (FM-MFM) individual magnetic nanoparticles
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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