Dresden 2026 – scientific programme

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MA: Fachverband Magnetismus

MA 7: Poster Magnetism I

MA 7.61: Poster

Monday, March 9, 2026, 09:30–12:30, P2

EMCD on Altermagnets — Hitoshi Makino¹, Sebastian Schneider¹, Sebastian Beckert¹, Rikako Yamamoto^2,3, Claire Donnelly^2,3, and •Pohl Darius¹ — ¹DCN, TUD Dresden University of Technology, Dresden, Germany — ²Max Planck Institute for Chemical Physics of Solids, Dresden, Germany — ³WPI-SKCM Hiroshima University, Hiroshima, Japan

Altermagnets represent a recently discovered class of magnetic materials featuring unique symmetry properties and compensated magnetic structures, which set them apart from conventional ferromagnets and antiferromagnets. Their novel electronic and magnetic characteristics are interesting for both fundamental research and advanced technological applications, particularly in spintronics. It has recently been shown that X-ray Magnetic Circular Dichroism is sensitive to time-reversal symmetry breaking in altermagnets. A similar behavior is expected for electron energy loss magnetic chiral dichroism (EMCD), the electron wave analogue to XMCD, a method providing element-specific sensitivity and high spatial resolution spectroscopic and imaging capabilities in an electron microscope. We will present first proof-of-principle EMCD experiments on MnTe and Fe₂O₃ and its comparison to structural TEM investigations and XMCD measurements to demonstrate the versatility of our approach and its application to probe altermagnetic materials at the nanoscale.

Keywords: Altermagnetism; EMCD; TEM