--- _id: '12697' abstract: - lang: eng text: Models for same-material contact electrification in granular media often rely on a local charge-driving parameter whose spatial variations lead to a stochastic origin for charge exchange. Measuring the charge transfer from individual granular spheres after contacts with substrates of the same material, we find instead a “global” charging behavior, coherent over the sample’s whole surface. Cleaning and baking samples fully resets charging magnitude and direction, which indicates the underlying global parameter is not intrinsic to the material, but acquired from its history. Charging behavior is randomly and irreversibly affected by changes in relative humidity, hinting at a mechanism where adsorbates, in particular, water, are fundamental to the charge-transfer process. acknowledgement: "We would like to thank Troy Shinbrot, Victor Lee and Daniele Foresti for helpful discussions. This project has received funding from the European Research Council Grant Agreement No. 949120 and from the the Marie Sk lodowska-Curie Grant Agreement No. 754411 under\r\nthe European Union’s Horizon 2020 research and innovation program." article_number: '098202' article_processing_charge: No article_type: original author: - first_name: Galien M full_name: Grosjean, Galien M id: 0C5FDA4A-9CF6-11E9-8939-FF05E6697425 last_name: Grosjean orcid: 0000-0001-5154-417X - first_name: Scott R full_name: Waitukaitis, Scott R id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87 last_name: Waitukaitis orcid: 0000-0002-2299-3176 citation: ama: Grosjean GM, Waitukaitis SR. Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media. Physical Review Letters. 2023;130(9). doi:10.1103/physrevlett.130.098202 apa: Grosjean, G. M., & Waitukaitis, S. R. (2023). Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.130.098202 chicago: Grosjean, Galien M, and Scott R Waitukaitis. “Single-Collision Statistics Reveal a Global Mechanism Driven by Sample History for Contact Electrification in Granular Media.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/physrevlett.130.098202. ieee: G. M. Grosjean and S. R. Waitukaitis, “Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media,” Physical Review Letters, vol. 130, no. 9. American Physical Society, 2023. ista: Grosjean GM, Waitukaitis SR. 2023. Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media. Physical Review Letters. 130(9), 098202. mla: Grosjean, Galien M., and Scott R. Waitukaitis. “Single-Collision Statistics Reveal a Global Mechanism Driven by Sample History for Contact Electrification in Granular Media.” Physical Review Letters, vol. 130, no. 9, 098202, American Physical Society, 2023, doi:10.1103/physrevlett.130.098202. short: G.M. Grosjean, S.R. Waitukaitis, Physical Review Letters 130 (2023). date_created: 2023-02-28T12:14:46Z date_published: 2023-03-03T00:00:00Z date_updated: 2023-08-22T08:41:32Z day: '03' ddc: - '530' - '537' department: - _id: ScWa doi: 10.1103/physrevlett.130.098202 ec_funded: 1 external_id: arxiv: - '2211.02488' isi: - '000946178200008' file: - access_level: open_access checksum: c4f2f6eea0408811f8f4898e15890355 content_type: application/pdf creator: ggrosjea date_created: 2023-02-28T12:20:27Z date_updated: 2023-02-28T12:20:27Z file_id: '12698' file_name: Main_Preprint.pdf file_size: 2301864 relation: main_file success: 1 - access_level: open_access checksum: 6af6ed6c97a977f923de4162294b43c4 content_type: application/pdf creator: ggrosjea date_created: 2023-02-28T12:20:55Z date_updated: 2023-02-28T12:20:55Z file_id: '12699' file_name: Suppl_info.pdf file_size: 1138625 relation: main_file success: 1 - access_level: open_access checksum: 3f20365fb9515bdba3a111d912c8d8b4 content_type: video/mp4 creator: ggrosjea date_created: 2023-02-28T12:37:54Z date_updated: 2023-02-28T12:37:54Z file_id: '12700' file_name: Suppl_vid1.mp4 file_size: 793449 relation: main_file success: 1 - access_level: open_access checksum: 90cecacbe0e2f9dea11f91a4ba20c32e content_type: video/mp4 creator: ggrosjea date_created: 2023-02-28T12:37:54Z date_updated: 2023-02-28T12:37:54Z file_id: '12701' file_name: Suppl_vid2.mp4 file_size: 455925 relation: main_file success: 1 file_date_updated: 2023-02-28T12:37:54Z has_accepted_license: '1' intvolume: ' 130' isi: 1 issue: '9' keyword: - General Physics - Electrostatics - Triboelectricity - Soft Matter - Acoustic Levitation - Granular Materials language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2211.02488 month: '03' oa: 1 oa_version: Preprint project: - _id: 0aa60e99-070f-11eb-9043-a6de6bdc3afa call_identifier: H2020 grant_number: '949120' name: 'Tribocharge: a multi-scale approach to an enduring problem in physics' - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: record: - id: '8101' relation: research_paper status: public status: public title: Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 130 year: '2023' ... --- _id: '8101' abstract: - lang: eng text: By rigorously accounting for mesoscale spatial correlations in donor/acceptor surface properties, we develop a scale-spanning model for same-material tribocharging. We find that mesoscale correlations affect not only the magnitude of charge transfer but also the fluctuations—suppressing otherwise overwhelming charge-transfer variability that is not observed experimentally. We furthermore propose a generic theoretical mechanism by which the mesoscale features might emerge, which is qualitatively consistent with other proposals in the literature. acknowledgement: "We would like to thank Philip Born, Bartosz Grzybowski, Tarik Baytekin, and Bilge Baytekin for helpful discussions.\r\nThis project has received funding from the European Unions Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411." article_number: '082602' article_processing_charge: Yes article_type: original author: - first_name: Galien M full_name: Grosjean, Galien M id: 0C5FDA4A-9CF6-11E9-8939-FF05E6697425 last_name: Grosjean orcid: 0000-0001-5154-417X - first_name: Sebastian full_name: Wald, Sebastian id: 133F200A-B015-11E9-AD41-0EDAE5697425 last_name: Wald - first_name: Juan Carlos A full_name: Sobarzo Ponce, Juan Carlos A id: 4B807D68-AE37-11E9-AC72-31CAE5697425 last_name: Sobarzo Ponce - first_name: Scott R full_name: Waitukaitis, Scott R id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87 last_name: Waitukaitis orcid: 0000-0002-2299-3176 citation: ama: Grosjean GM, Wald S, Sobarzo Ponce JCA, Waitukaitis SR. Quantitatively consistent scale-spanning model for same-material tribocharging. Physical Review Materials. 2020;4(8). doi:10.1103/PhysRevMaterials.4.082602 apa: Grosjean, G. M., Wald, S., Sobarzo Ponce, J. C. A., & Waitukaitis, S. R. (2020). Quantitatively consistent scale-spanning model for same-material tribocharging. Physical Review Materials. American Physical Society. https://doi.org/10.1103/PhysRevMaterials.4.082602 chicago: Grosjean, Galien M, Sebastian Wald, Juan Carlos A Sobarzo Ponce, and Scott R Waitukaitis. “Quantitatively Consistent Scale-Spanning Model for Same-Material Tribocharging.” Physical Review Materials. American Physical Society, 2020. https://doi.org/10.1103/PhysRevMaterials.4.082602. ieee: G. M. Grosjean, S. Wald, J. C. A. Sobarzo Ponce, and S. R. Waitukaitis, “Quantitatively consistent scale-spanning model for same-material tribocharging,” Physical Review Materials, vol. 4, no. 8. American Physical Society, 2020. ista: Grosjean GM, Wald S, Sobarzo Ponce JCA, Waitukaitis SR. 2020. Quantitatively consistent scale-spanning model for same-material tribocharging. Physical Review Materials. 4(8), 082602. mla: Grosjean, Galien M., et al. “Quantitatively Consistent Scale-Spanning Model for Same-Material Tribocharging.” Physical Review Materials, vol. 4, no. 8, 082602, American Physical Society, 2020, doi:10.1103/PhysRevMaterials.4.082602. short: G.M. Grosjean, S. Wald, J.C.A. Sobarzo Ponce, S.R. Waitukaitis, Physical Review Materials 4 (2020). date_created: 2020-07-07T11:33:54Z date_published: 2020-08-17T00:00:00Z date_updated: 2023-08-22T08:41:32Z day: '17' ddc: - '530' department: - _id: ScWa doi: 10.1103/PhysRevMaterials.4.082602 ec_funded: 1 external_id: arxiv: - '2006.07120' isi: - '000561897000001' file: - access_level: open_access checksum: 288fef1eeb6540c6344bb8f7c8159dc9 content_type: application/pdf creator: ggrosjea date_created: 2020-08-17T15:54:20Z date_updated: 2020-08-17T15:54:20Z file_id: '8277' file_name: Grosjean2020.pdf file_size: 853753 relation: main_file success: 1 file_date_updated: 2020-08-17T15:54:20Z has_accepted_license: '1' intvolume: ' 4' isi: 1 issue: '8' keyword: - electric charge - tribocharging - soft matter - granular materials - polymers language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review Materials publication_identifier: issn: - 2475-9953 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: record: - id: '12697' relation: popular_science status: public scopus_import: '1' status: public title: Quantitatively consistent scale-spanning model for same-material tribocharging tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 4 year: '2020' ...