期刊
NANOSCALE
卷 6, 期 19, 页码 11163-11168出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr02215g
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资金
- National Natural Science Foundation of China [61103148, 51202146]
- Program for Liaoning Excellent Talents in University [LJQ2013129]
- 46th Scientific Research Foundation for the Returned Overseas Chinese Scholars
- National Magnetic Confinement Fusion Program [2011GB108011]
- JST-SENTAN
Near field magnetic force microscopy (NF-MFM) has been demonstrated to locally observe the magnetic fine structures in nanosized recording bits at an operating distance of 1 nm. The nanoscale magnetic domains, the polarity of surface magnetic charges, as well as the 3D magnetic fields leaking from the bits are investigated via NF-MFM with a soft NiFe tip. A Fourier analysis of the images suggests that the magnetic moment can be determined locally in a volume as small as 5 nanometers. The NF-MFM is crucial to the analysis of surface magnetic features and allows a wide range of future applications, for example, in data storage and biomedicine.
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