Three-dimensional study of the vector potential of magnetic structures

Charudatta Phatak*, Amanda K. Petford-Long, M. De Graef

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

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 languageEnglish (US)
Article number253901
JournalPhysical review letters
Volume104
Issue number25
DOIs
StatePublished - Jun 21 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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