Approaching the Intrinsic Properties of Moiré Structures Using Atomic Force Microscopy Ironing
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914974551506944 |
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| author | Palai, Swaroop Kumar Dyksik, Mateusz Sokolowski, Nikodem Ciorga, Mariusz Viso, Estrella Sánchez Xie, Yong Schubert, Alina Taniguchi, Takashi Watanabe, Kenji Maude, Duncan K. Surrente, Alessandro Baranowski, Michał Castellanos-Gomez, Andres Munuera, Carmen Plochocka, Paulina |
| author_facet | Palai, Swaroop Kumar Dyksik, Mateusz Sokolowski, Nikodem Ciorga, Mariusz Viso, Estrella Sánchez Xie, Yong Schubert, Alina Taniguchi, Takashi Watanabe, Kenji Maude, Duncan K. Surrente, Alessandro Baranowski, Michał Castellanos-Gomez, Andres Munuera, Carmen Plochocka, Paulina |
| contents | Stacking monolayers of transition metal dichalcogenides (TMDs) has led to the discovery of a plethora of new exotic phenomena, resulting from moiré pattern formation. Due to the atomic thickness and high surface-to-volume ratio of heterostructures, the interfaces play a crucial role. Fluctuations in the interlayer distance affect interlayer coupling and moiré effects. Therefore, to access the intrinsic properties of the TMD stack, it is essential to obtain a clean and uniform interface between the layers. Here, we show that this is achieved by ironing with the tip of an atomic force microscope. This post-stacking procedure dramatically improves the homogeneity of the interfaces, which is reflected in the optical response of the interlayer exciton. We demonstrate that ironing improves the layer coupling, enhancing moiré effects and reducing disorder. This is crucial for the investigation of TMD heterostructure physics, which currently suffers from low reproducibility. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_12472 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Approaching the Intrinsic Properties of Moiré Structures Using Atomic Force Microscopy Ironing Palai, Swaroop Kumar Dyksik, Mateusz Sokolowski, Nikodem Ciorga, Mariusz Viso, Estrella Sánchez Xie, Yong Schubert, Alina Taniguchi, Takashi Watanabe, Kenji Maude, Duncan K. Surrente, Alessandro Baranowski, Michał Castellanos-Gomez, Andres Munuera, Carmen Plochocka, Paulina Mesoscale and Nanoscale Physics Stacking monolayers of transition metal dichalcogenides (TMDs) has led to the discovery of a plethora of new exotic phenomena, resulting from moiré pattern formation. Due to the atomic thickness and high surface-to-volume ratio of heterostructures, the interfaces play a crucial role. Fluctuations in the interlayer distance affect interlayer coupling and moiré effects. Therefore, to access the intrinsic properties of the TMD stack, it is essential to obtain a clean and uniform interface between the layers. Here, we show that this is achieved by ironing with the tip of an atomic force microscope. This post-stacking procedure dramatically improves the homogeneity of the interfaces, which is reflected in the optical response of the interlayer exciton. We demonstrate that ironing improves the layer coupling, enhancing moiré effects and reducing disorder. This is crucial for the investigation of TMD heterostructure physics, which currently suffers from low reproducibility. |
| title | Approaching the Intrinsic Properties of Moiré Structures Using Atomic Force Microscopy Ironing |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2410.12472 |