Fig. 2: Energy splitting of excitonic emission in the Voigt geometry.
From: Unveiling the spin evolution in van der Waals antiferromagnets via magneto-exciton effects
a Magneto-optical measurements of exfoliated NiPS3 flakes in the Voigt geometry with the external field applied along different angles within the a-b plane. b Schematic of excitonic energy states in the antiferromagnetic (AFM) phase, featuring the quantum number difference \(\Delta {m}_{s}=\pm 1\) in the transition. c Schematic of excitonic energy states in the canted antiferromagnetic (CAFM) phase, featuring the quantum number difference \(\Delta {m}_{s}=\pm \delta\) in the transition, where δ < 1.
