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Research Highlight

Light-Matter Interactions Reveal an Unprecedented Spontaneous Chirality Flipping


Photon-based spectroscopic measurements reveal a never-before-seen spontaneous chirality flipping upon cooling in the topological semimetal EuAl4.

Our results highlight EuAl4 as a new platform for emergent chiral interactions and open a new avenue for chiral microelectronic applications.

DOI: 10.1103/PhysRevX.14.011053