Science· 2026Q1
Chiral altermagnon in MnTe
- 2citations
- Q1SCImago
- 2026year
Short summary
Researchers provide direct experimental evidence for a chiral magnon, termed chiral altermagnon, in the altermagnetic candidate manganese telluride (MnTe).
AI-generated from the title and abstract; the full text is not read.
Key points
- Direct experimental evidence for a chiral magnon (chiral altermagnon) in MnTe.
- Observation made via circular-dichroism resonant inelastic x-ray scattering.
- Chiral altermagnon exhibits momentum-dependent spin polarization consistent with MnTe's g-wave altermagnetic symmetry.
- Demonstrates the impact of altermagnetic order on spin dynamics.
AI-generated from the title and abstract; the full text is not read.
Abstract
Altermagnetism has been recognized as a magnetic phase that bridges the properties of ferro- and antiferromagnetism. The momentum-dependent spin splitting observed in these materials reflects their distinctive symmetry characteristics, which also establish the conditions for chiral magnons to emerge. Here we provide direct experimental evidence for a chiral magnon in the altermagnetic candidate manganese telluride (MnTe) revealed by circular-dichroism resonant inelastic x-ray scattering. This mode, which we term chiral altermagnon, exhibits a distinct momentum dependence of its spin polarization consistent with the altermagnetic g -wave symmetry of MnTe. Our polarization-resolved data corroborate the existence of a discrete class of magnetic excitations, demonstrating how altermagnetic order shapes spin dynamics and paving the way for advances in spintronic and quantum technologies.
The authors' abstract, as published at the source. Science, 2026 · DOI ↗
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Field: Condensed Matter Physics
Condensed Matter PhysicsPhysics and Astronomy