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Updated: Aug 29, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Three-dimensional noncollinear antiferromagnetic order in single-crystalline FeMn ultrathin films
Wolfgang Kuch1, Liviu I Chelaru, Francesco Offi
1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany. kuch@mpi-halle.de
Abstract:
We present experimental evidence for a three-dimensional noncollinear antiferromagnetic spin structure in ultrathin single-crystalline fcc Fe50Mn50 layers using magnetic circular dichroism photoelectron emission microscopy and x-ray magnetic linear dichroism. Layer-resolved as-grown domain images of epitaxial trilayers grown on Cu(001) in which FeMn is sandwiched between ferromagnetic layers with different easy axes reveal the presence of antiferromagnetic spin components in the film plane and normal to the film plane. An FeMn spin structure with no collinear order in the film plane is consistent with the absence of x-ray magnetic linear dichroism in Fe L3 absorption in FeMn/Co bilayers.
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