DOAJ Open Access 2025

Interlayer interaction and Davydov splitting in antiferromagnetic few-layer NiPS3

Manh Hong Nguyen Giung Park Je-Geun Park Hyeonsik Cheong

Abstrak

Abstract Interlayer interactions in few-layer NiPS3 were investigated by analyzing low-frequency interlayer vibration modes and Davydov splitting of an intralayer, A1g vibration mode at ~255 cm–1 by Raman spectroscopy as a function of temperature. The interlayer force constants were estimated from the low-frequency Raman spectra by using the linear chain model. The out-of-plane direction interlayer force constant could also be estimated separately from the Davydov splitting, which agrees well with the linear chain model analysis. The dependence of the low-frequency shear and breathing modes and the Davydov splitting on the number of layers provide a unique, reliable tool for determining the number of layers.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Atomic physics. Constitution and properties of matter

Penulis (4)

Manh Hong Nguyen

Giung Park

Je-Geun Park

Hyeonsik Cheong

Format Sitasi

APA MLA BibTeX

Nguyen, M.H., Park, G., Park, J., Cheong, H. (2025). Interlayer interaction and Davydov splitting in antiferromagnetic few-layer NiPS3. https://doi.org/10.1038/s41535-025-00788-x

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1038/s41535-025-00788-x
Akses: Open Access ✓