Abstract
The vector potential is central to a number of areas of condensed matter physics, such as superconductivity and magnetism. We have used a combination of electron wave phase reconstruction and electron tomographic reconstruction to experimentally measure and visualize the three-dimensional vector potential in and around a magnetic Permalloy structure. The method can probe the vector potential of the patterned structures with a resolution of about 13 nm. A transmission electron microscope operated in the Lorentz mode is used to record four tomographic tilt series. Measurements for a square Permalloy structure with an internal closure domain configuration are presented.
Original language | English (US) |
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Article number | 253901 |
Journal | Physical review letters |
Volume | 104 |
Issue number | 25 |
DOIs | |
State | Published - Jun 21 2010 |
ASJC Scopus subject areas
- Physics and Astronomy(all)