Gespeichert in:
| Hauptverfasser: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2510.13699 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866912649865854976 |
|---|---|
| author | Hasan, Nazmul Peña, Tara Dey, Aditya Yoon, Dongyoung Islam, Zakaria Zhang, Yue Leal, Maria Vitoria Guimaraes van der Zande, Arend M. Askari, Hesam Wu, Stephen M. |
| author_facet | Hasan, Nazmul Peña, Tara Dey, Aditya Yoon, Dongyoung Islam, Zakaria Zhang, Yue Leal, Maria Vitoria Guimaraes van der Zande, Arend M. Askari, Hesam Wu, Stephen M. |
| contents | Two-dimensional (2D) materials with a twist between layers exhibit a moiré interference pattern with larger periodicity than any of the constituent layer unit cells. In these systems, a wealth of exotic phases appear that result from moiré-dependent many-body electron correlation effects or non-trivial band topology. One problem with using twist to generate moiré interference has been the difficulty in creating high-quality, uniform, and repeatable samples due to fabrication through mechanical stacking with viscoelastic stamps. Here we show, a new method to generate moiré interference through the controlled application of layer-by-layer strain (heterostrain) on non-twisted 2D materials, where moiré interference results from strain-induced lattice mismatch without twisting or stacking. Heterostrain generation is achieved by depositing stressed thin films onto 2D materials to apply large strains to the top layers while leaving layers further down less strained. We achieve deterministic control of moiré periodicity and symmetry in non-twisted 2D multilayers and bilayers, with 97% yield, through varying stressor film force (film thickness X film stress) and geometry. Moiré reconstruction effects are memorized after the removal of the stressor layers. Control over the strain degree-of-freedom opens the door to a completely unexplored set of unrealized tunable moiré geometric symmetries, which may now be achieved in a high-yield and user-skill independent process taking only hours. This technique solves a long-standing throughput bottleneck in new moiré quantum materials discovery and opens the door to industrially-compatible manufacturing for 2D moiré-based electronic or optical devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_13699 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Strain-induced Moiré Reconstruction and Memorization in Two-Dimensional Materials without Twist Hasan, Nazmul Peña, Tara Dey, Aditya Yoon, Dongyoung Islam, Zakaria Zhang, Yue Leal, Maria Vitoria Guimaraes van der Zande, Arend M. Askari, Hesam Wu, Stephen M. Materials Science Two-dimensional (2D) materials with a twist between layers exhibit a moiré interference pattern with larger periodicity than any of the constituent layer unit cells. In these systems, a wealth of exotic phases appear that result from moiré-dependent many-body electron correlation effects or non-trivial band topology. One problem with using twist to generate moiré interference has been the difficulty in creating high-quality, uniform, and repeatable samples due to fabrication through mechanical stacking with viscoelastic stamps. Here we show, a new method to generate moiré interference through the controlled application of layer-by-layer strain (heterostrain) on non-twisted 2D materials, where moiré interference results from strain-induced lattice mismatch without twisting or stacking. Heterostrain generation is achieved by depositing stressed thin films onto 2D materials to apply large strains to the top layers while leaving layers further down less strained. We achieve deterministic control of moiré periodicity and symmetry in non-twisted 2D multilayers and bilayers, with 97% yield, through varying stressor film force (film thickness X film stress) and geometry. Moiré reconstruction effects are memorized after the removal of the stressor layers. Control over the strain degree-of-freedom opens the door to a completely unexplored set of unrealized tunable moiré geometric symmetries, which may now be achieved in a high-yield and user-skill independent process taking only hours. This technique solves a long-standing throughput bottleneck in new moiré quantum materials discovery and opens the door to industrially-compatible manufacturing for 2D moiré-based electronic or optical devices. |
| title | Strain-induced Moiré Reconstruction and Memorization in Two-Dimensional Materials without Twist |
| topic | Materials Science |
| url | https://arxiv.org/abs/2510.13699 |