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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.16627 |
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| _version_ | 1866910170840301568 |
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| author | Kumar, Vivek Jangid, Abhishek Sharma, Manas Verma, Manvi Pasyanthi, Jampala Kumar, Keerthana S Sharma, Piyush Chiglintsev, Emil O. Panin, Mikhail I. Punnathanam, Sudeep N. Chernov, Alexander I. Rajan, Ananth Govind Singh, Akshay |
| author_facet | Kumar, Vivek Jangid, Abhishek Sharma, Manas Verma, Manvi Pasyanthi, Jampala Kumar, Keerthana S Sharma, Piyush Chiglintsev, Emil O. Panin, Mikhail I. Punnathanam, Sudeep N. Chernov, Alexander I. Rajan, Ananth Govind Singh, Akshay |
| contents | Two-dimensional magnetic materials (2D-MM) are an exciting playground for fundamental research, and for spintronics and quantum sensing. However, their large-grain large-area synthesis using scalable vapour deposition methods is still an unsolved challenge. Here, we develop a tailored approach for centimetre-scale growth of semiconducting 2D-MM CrCl3 films on mica substrate, via physical vapour transport deposition. A controlled synthesis protocol, enabled via innovations concerning light management, very-high carrier-gas flow, precursor flux, and oxygen/moisture removal, is critical for wafer-scale growth. Optical, stoichiometric, structural, and magnetic characterization identify crystalline, phase-pure 2D-MM CrCl3. Substrate temperature tunes thickness of films from few-layers to tens of nanometres. Further, selective-area growth and large-area transfer are demonstrated. Substrate-dependent growth features are explained by density functional theory and state-of-the-art machine learning interatomic potential-based atomic-scale simulations. This scalable vapour deposition approach can be applied for growth of several 2D-MM, and low growth temperature (~500 C) will enable creation of hybrid heterostructures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_16627 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tailored Vapor Deposition Unlocks Large-Grain, Wafer-Scale Epitaxial Growth of 2D Magnetic CrCl3 Kumar, Vivek Jangid, Abhishek Sharma, Manas Verma, Manvi Pasyanthi, Jampala Kumar, Keerthana S Sharma, Piyush Chiglintsev, Emil O. Panin, Mikhail I. Punnathanam, Sudeep N. Chernov, Alexander I. Rajan, Ananth Govind Singh, Akshay Materials Science Mesoscale and Nanoscale Physics Two-dimensional magnetic materials (2D-MM) are an exciting playground for fundamental research, and for spintronics and quantum sensing. However, their large-grain large-area synthesis using scalable vapour deposition methods is still an unsolved challenge. Here, we develop a tailored approach for centimetre-scale growth of semiconducting 2D-MM CrCl3 films on mica substrate, via physical vapour transport deposition. A controlled synthesis protocol, enabled via innovations concerning light management, very-high carrier-gas flow, precursor flux, and oxygen/moisture removal, is critical for wafer-scale growth. Optical, stoichiometric, structural, and magnetic characterization identify crystalline, phase-pure 2D-MM CrCl3. Substrate temperature tunes thickness of films from few-layers to tens of nanometres. Further, selective-area growth and large-area transfer are demonstrated. Substrate-dependent growth features are explained by density functional theory and state-of-the-art machine learning interatomic potential-based atomic-scale simulations. This scalable vapour deposition approach can be applied for growth of several 2D-MM, and low growth temperature (~500 C) will enable creation of hybrid heterostructures. |
| title | Tailored Vapor Deposition Unlocks Large-Grain, Wafer-Scale Epitaxial Growth of 2D Magnetic CrCl3 |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2505.16627 |