Antiferromagnetic real-space configuration probed by dichroism in scattered x-ray beams with orbital angular momentum
Source abstract
Abstract
Helical x rays carrying orbital angular momentum (OAM) are a promising addition to x-ray characterization techniques. Here, the authors study x-ray beams with OAM that are created by scattering from a topological defect in an artificial antiferromagnet. Helicity- and polarization-dependent x-ray scattering is used to distinguish two degenerate real-space magnetic configurations of the antiferromagnetic lattice --- information that is usually inaccessible in scattering experiments with a Gaussian beam. This demonstrates the potential to use helical x rays for materials characterization.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Orbital Angular Momentum in Optics · Cold Atom Physics and Bose-Einstein Condensates · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
Department of Physics, University of California, Santa Cruz, California 95064, USA
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
Space Sciences Laboratory, University of California, Berkeley, California 94720, USA
Department of Electrical and Computer Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
Funding
U.S. Department of Energy · National Science Foundation
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