2015/09/30 by Alexander Edström, Å. Edström, Axel Lubk +1 · 59 citations
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Advanced Electron Microscopy Techniques and Applications #Angular momentum #Atomic physics #Condensed matter physics #Elastic scattering #Electron #Force Microscopy Techniques and Applications #Magnetic field #Near-Field Optical Microscopy #Optics #Physics #Quantum mechanics #Scattering #Vortex #Zeeman effect #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevlett.116.127203
published in Physical Review Letters 116(12), 127203 (American Physical Society) · 5 pages, 3 figures
arxiv created 2016/01/28 · openalex publication_date 2016/03/24 · arxiv updated 2016/03/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Elastic scattering of electron vortex beams on magnetic materials leads to a weak magnetic contrast due to Zeeman interaction of orbital angular momentum of the beam with magnetic fields in the sample. The magnetic signal manifests itself as a redistribution of intensity in diffraction patterns due to a change of sign of the orbital angular momentum of the electron vortex beam. While in the atomic resolution regime the magnetic signal is most likely under the detection limits of present transmission electron microscopes, for electron probes with high orbital angular momenta, and correspondingly larger spatial extent, its detection is predicted to be feasible.