Journal
CHINESE PHYSICS B
Volume 28, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/28/8/087503
Keywords
magnetic skyrmion; Lorentz transmission microscope; nanostructures
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Funding
- National Key Research and Development Program of China [2017YFA0303201]
- Key Research Program of Frontier Sciences, CAS [QYZDB-SSW-SLH009]
- National Natural Science Foundation of China [51622105, 11804343]
- President Foundation of Hefei Institutes of Physical Science, CAS [YZJJ2018QN15]
- Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology [2016FXCX001]
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Magnetic skyrmions have interesting properties, including their small size, topological stability, and extremely low threshold current for current-driven motion. Therefore, they are regarded as promising candidates for next-generation magnetic memory devices. Lorentz transmission electron microscopy (TEM) has an ultrahigh magnetic domain resolution (similar to 2 nm), it is thus an ideal method for direct real-space imaging of fine magnetic configurations of ultra-small skyrmions. In this paper, we describe the basic principles of Lorentz-TEM and off-axis electron holography and review recent experimental developments in magnetic skyrmion imaging using these two methods.
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