# Breakdown of the Static Dielectric Screening Approximation of Coulomb Interactions in Atomically Thin Semiconductors https://mdr.nims.go.jp/datasets/18dbf41f-7237-48ef-a5b1-eb272a4e0b34 ## File - [ben-mhenni-et-al-2025-breakdown-of-the-static-dielectric-screening-approximation-of-coulomb-interactions-in-atomically.pdf](https://mdr.nims.go.jp/filesets/21ab7b5e-25d0-4cf7-884c-0fcaddc3cf23/download) ([Detail](https://mdr.nims.go.jp/filesets/21ab7b5e-25d0-4cf7-884c-0fcaddc3cf23.md)) ## Id 18dbf41f-7237-48ef-a5b1-eb272a4e0b34 ## Local identifier ## Visibility open_to_public ## State published ## Created at 2026-02-14T09:53:52.500946Z ## Updated at 2026-02-16T08:15:39.627198Z ## Published at 2026-02-16T04:57:29.661904Z ## Doi ## First published url https://doi.org/10.1021/acsnano.4c11563 ## Date published 2025-02-04 ## Recorded date published 2025-2-4 ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Breakdown of the Static Dielectric Screening Approximation of Coulomb Interactions in Atomically Thin Semiconductors title_type: original lang: en ## Description - description: Coulomb interactions in atomically thin materials are uniquely sensitive to variations in the dielectric screening of the environment, which can be used to control quasiparticles and exotic quantum many-body phases. A static approximation of the dielectric response, where increased dielectric screening is predicted to cause an energy redshift of the exciton resonance, has been until now sufficient. Here, we use charge-tunable exciton resonances to study screening effects in transition metal dichalcogenide monolayers embedded in materials with dielectric constants ranging from 4 to more than 1000. In contrast to expectations, we observe a blueshift of the exciton resonance exceeding 30 meV for larger dielectric constant environments. By employing a dynamical screening model, we find that while the exciton binding energy remains mostly controlled by the static dielectric response, the exciton self-energy is dominated by the high-frequency response. Dielectrics with markedly different static and high-frequency screening enable the selective addressing of distinct many-body effects in layered materials and their heterostructures, expanding the tunability range and offering new routes to detect and control correlated quantum many-body states and to design optoelectronic and quantum devices. description_type: abstract lang: und ## Creator - name: Amine Ben Mhenni role: author - name: Dinh Van Tuan role: author - name: Leonard Geilen role: author - name: Marko M. Petrić role: author - name: Melike Erdi role: author - name: Kenji Watanabe role: author orcid: https://orcid.org/0000-0003-3701-8119 organization: National Institute for Materials Science - name: Takashi Taniguchi role: author orcid: https://orcid.org/0000-0002-1467-3105 organization: National Institute for Materials Science - name: Seth Ariel Tongay role: author - name: Kai Müller role: author - name: Nathan P. Wilson role: author - name: Jonathan J. Finley role: author - name: Hanan Dery role: author - name: Matteo Barbone role: author ## Contact agent ## Publisher organization: American Chemical Society (ACS) ## Managing organization ## Keyword - subject: dielectric screening schema: not_defined - subject: 'Coulomb interactions
 ' schema: not_defined - subject: 'atomically thin semiconductors
 ' schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ date_licensed: 2025-01-21 ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo ## Journal - title: ACS Nano issn: '19360851' volume: '19' issue: '4' start_page: 4269 end_page: 4278 ## Conference ## Related item ## Funding - identifier: 13N15760 funder_name: Bundesministerium f?r Bildung und Forschung - identifier: 13N16214 funder_name: Bundesministerium f?r Bildung und Forschung - identifier: 16K15Q027 funder_name: Bundesministerium f?r Bildung und Forschung - funder_name: Ministry of Education, Culture, Sports, Science and Technology - identifier: DE-SC0014349 funder_name: Basic Energy Sciences - identifier: DOE-SC0020653 funder_name: Basic Energy Sciences - identifier: DI 2013/5-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: DI 2013/5-2 funder_name: Deutsche Forschungsgemeinschaft - identifier: EXC-2089/1-390776260 funder_name: Deutsche Forschungsgemeinschaft - identifier: EXC-2111/390814868 funder_name: Deutsche Forschungsgemeinschaft - identifier: FI 947/5-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: FI 947/6-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: FI 947/8-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: INST 95/1496-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: INST 95/1654-1 funder_name: Deutsche Forschungsgemeinschaft - identifier: INST 95/1719-1 funder_name: Deutsche Forschungsgemeinschaft - funder_name: Bayerisches Staatsministerium f?r Wissenschaft und Kunst - identifier: 20H00354 funder_name: Japan Society for the Promotion of Science - identifier: 23H02052 funder_name: Japan Society for the Promotion of Science - funder_name: International Max Planck Research School for Quantum Science and Technology - identifier: ECCS 2052527 funder_name: Division of Electrical, Communications and Cyber Systems - identifier: CMMI 1825594 funder_name: Division of Civil, Mechanical and Manufacturing Innovation - identifier: CMMI 2129412 funder_name: Division of Civil, Mechanical and Manufacturing Innovation - funder_name: Alexander von Humboldt-Stiftung - identifier: DMR 2111812 funder_name: Division of Materials Research ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: 21ab7b5e-25d0-4cf7-884c-0fcaddc3cf23 filename: ben-mhenni-et-al-2025-breakdown-of-the-static-dielectric-screening-approximation-of-coulomb-interactions-in-atomically.pdf content_type: application/pdf size: 3733453 md5: 128eb9ddb600fe29195fcff6df1f94b6 ## Thumbnail fileset_id: 21ab7b5e-25d0-4cf7-884c-0fcaddc3cf23 filename: ben-mhenni-et-al-2025-breakdown-of-the-static-dielectric-screening-approximation-of-coulomb-interactions-in-atomically.pdf