Infrared measurements identify magnetic and lattice excitation coupling in FePS3, indicating complex interactions.
Key Points
Significant coupling between magnetic and lattice excitations was observed in FePS3, revealing intricate dynamics.
The study highlighted a prominent optical excitation at 122 cm-1, which confirms a magnetic origin through its behavior under cooling and magnetic field.
Dichroism measurements indicate unusual interactions, including reduced dichroism at 129 cm-1, pointing to spin-phonon hybridization effects.
Findings suggest that FePS3 exhibits complex spin-lattice interactions, essential for understanding two-dimensional antiferromagnetic materials.