Light-matter coupling via quantum pathways for spontaneous symmetry breaking in van der Waals antiferromagnetic semiconductors DOI Creative Commons
Kyung Ik Sim, Jae Hoon Kim, Byung Cheol Park

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 11, 2025

Light-matter interaction simultaneously alters both the original material and incident light. Light not only reveals details but also activates coupling mechanisms. The has been demonstrated mechanically, for instance, through patterning of metallic antennas, resulting in emergence plasmonic quasiparticles enabling wavefront engineering light via generalized Snell's law. However, quantum-mechanical light-matter interaction, wherein photons coherently excite distinct quantum pathways, remains poorly understood. Here, we report on interference between light-induced pathways orbital levels spin continuum. immediately breaks symmetry hexagonal antiferromagnetic semiconductor FePS3. Below Néel temperature, observe birefringence linear dichroism, namely, anisotropy due to interference, which is further enhanced by thickness effect. We explain direct relevance a phase transition spontaneous breaking Mexican hat potential. Our findings suggest modulation selective interaction. interactions materials have primarily studied from perspective phases. Here authors excitation paths van der Waals FePS3 dichroism.

Language: Английский

Light-matter coupling via quantum pathways for spontaneous symmetry breaking in van der Waals antiferromagnetic semiconductors DOI Creative Commons
Kyung Ik Sim, Jae Hoon Kim, Byung Cheol Park

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 11, 2025

Light-matter interaction simultaneously alters both the original material and incident light. Light not only reveals details but also activates coupling mechanisms. The has been demonstrated mechanically, for instance, through patterning of metallic antennas, resulting in emergence plasmonic quasiparticles enabling wavefront engineering light via generalized Snell's law. However, quantum-mechanical light-matter interaction, wherein photons coherently excite distinct quantum pathways, remains poorly understood. Here, we report on interference between light-induced pathways orbital levels spin continuum. immediately breaks symmetry hexagonal antiferromagnetic semiconductor FePS3. Below Néel temperature, observe birefringence linear dichroism, namely, anisotropy due to interference, which is further enhanced by thickness effect. We explain direct relevance a phase transition spontaneous breaking Mexican hat potential. Our findings suggest modulation selective interaction. interactions materials have primarily studied from perspective phases. Here authors excitation paths van der Waals FePS3 dichroism.

Language: Английский

Citations

0