A Milli-Kelvin Atomic Force Microscope Made of Glass
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
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| _version_ | 1866912423713177600 |
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| author | Huang, Chengyuan Chen, Zhenlan Ha, Mengke Wang, Haoyuan Xiao, Qing Ma, Changjian Liu, Danqing Qin, Zhiyuan Qiu, Dawei Guo, Ziliang Chen, Dingbang Zhao, Qianyi Liu, Yanling Ye, Chengxuan Li, Zhenhao Cheng, Guanglei |
| author_facet | Huang, Chengyuan Chen, Zhenlan Ha, Mengke Wang, Haoyuan Xiao, Qing Ma, Changjian Liu, Danqing Qin, Zhiyuan Qiu, Dawei Guo, Ziliang Chen, Dingbang Zhao, Qianyi Liu, Yanling Ye, Chengxuan Li, Zhenhao Cheng, Guanglei |
| contents | Milli-Kelvin atomic force microscopy (mK-AFM) presents an ongoing experimental challenge due to the intense vibrations in a cryogen-free dilution refrigerator and the low cooling power available at mK temperatures. A viable approach is to make the system exceptionally rigid and thermally insulating to decouple external vibrations and isolate heat dissipation from the piezo elements. Here, we present a low-cost and large scan-range mK-AFM that operates below 100 mK. All the essential parts of our mK-AFM, including the scanners, tip assembly, and microscope body, are custom-made of fused silica glass by taking advantage of its high specific modulus, extremely low thermal expansion coefficient, and excellent thermal insulation properties. We carefully balance the scan range (25 $μ$m $\times$ 25 $μ$m), heat dissipation, and stiffness of the system to reach optimal performance at mK temperatures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_19845 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Milli-Kelvin Atomic Force Microscope Made of Glass Huang, Chengyuan Chen, Zhenlan Ha, Mengke Wang, Haoyuan Xiao, Qing Ma, Changjian Liu, Danqing Qin, Zhiyuan Qiu, Dawei Guo, Ziliang Chen, Dingbang Zhao, Qianyi Liu, Yanling Ye, Chengxuan Li, Zhenhao Cheng, Guanglei Instrumentation and Detectors Milli-Kelvin atomic force microscopy (mK-AFM) presents an ongoing experimental challenge due to the intense vibrations in a cryogen-free dilution refrigerator and the low cooling power available at mK temperatures. A viable approach is to make the system exceptionally rigid and thermally insulating to decouple external vibrations and isolate heat dissipation from the piezo elements. Here, we present a low-cost and large scan-range mK-AFM that operates below 100 mK. All the essential parts of our mK-AFM, including the scanners, tip assembly, and microscope body, are custom-made of fused silica glass by taking advantage of its high specific modulus, extremely low thermal expansion coefficient, and excellent thermal insulation properties. We carefully balance the scan range (25 $μ$m $\times$ 25 $μ$m), heat dissipation, and stiffness of the system to reach optimal performance at mK temperatures. |
| title | A Milli-Kelvin Atomic Force Microscope Made of Glass |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2502.19845 |