Phonon dispersion in WS<sub>2</sub>
Abstract We present a combined experimental and theoretical study of the phonon dispersion in bulk 2H-WS 2 by means of inelastic x-ray scattering and density functional perturbation theory. Our findings highlight the two-dimensional character of the lattice dynamics in this van-der-Waals system and indicate the significance of the bulk phonon measurements for the monolayer counterpart. The agreement between the simulated phonon scattering factors and the experimentally measured phonon spectra allow to map an extensive part of the phonon dispersion curves along high-symmetry crystallographic directions and serve as a reference for future experiments under variable experimental conditions.
Authors
- Luigi Paolasini (ORCID: https://orcid.org/0000-0003-2699-7200)
- Hans Tornatzky (ORCID: https://orcid.org/0000-0002-3153-0501)
- Janina Maultzsch (ORCID: https://orcid.org/0000-0002-6088-2442)
- Roland Gillen (ORCID: https://orcid.org/0000-0002-7913-0953)
- Antonios Michail (ORCID: https://orcid.org/0000-0002-8428-6602)
- John Parthenios (ORCID: https://orcid.org/0000-0001-6066-7120)
- S. M. Souliou (ORCID: https://orcid.org/0000-0001-9201-7392)
- Alexeï Bosak (ORCID: https://orcid.org/0000-0001-8199-2301)
- Konstantinos Papagelis (ORCID: https://orcid.org/0000-0001-5094-9837)
- Severin Kuffer
Institutions
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Aristotle University of Thessaloniki (GR)
- European Synchrotron Radiation Facility (FR)
- Swansea University (GB)
- FORTH Institute of Chemical Engineering Sciences (GR)
- Institute of Chemical Engineering (BG)
- Forschungsverbund Berlin (DE)
Publication Details
- Journal
- 2D Materials
- Published
- 2025-08-22
- DOI
- https://doi.org/10.1088/2053-1583/adfe7d
- Citations
- 1
- Primary Topic
- Organic and Molecular Conductors Research
- Type
- article
- Field-Weighted Citation Impact
- 0.43
Funders
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- Deutsche Forschungsgemeinschaft
- European Synchrotron Radiation Facility