Piezo tube stacked scanning tunneling microscope for use in extreme and confined environments
文献类型：期刊论文
| 作者 | Wang, Jihao1; Sun, Mengbo2 |
| 刊名 | MICRON
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 187 |
| 关键词 | Scanning tunneling microscopy Atomic resolution High stability Low temperature High magnetic fields |
| ISSN号 | 0968-4328 |
| DOI | 10.1016/j.micron.2024.103719 |
| 通讯作者 | Sun, Mengbo(smbo1990@126.com) |
| 英文摘要 | Scanning Tunneling Microscopy (STM) is widely used for observing atomic structures due to its ultra-high spatial resolution. As the core units of STM, the coarse stepper motor and imaging unit, have conflicting size requirements for piezo tubes. Longer piezo tubes yield greater output force and easier movement for the motor, while shorter tubes enhance imaging precision and stability for the scanner. Traditional STMs typically employ a large piezo tube for coarse stepping and a smaller one for independent imaging to address this issue. Here, we present the new design of a piezo tube stacked STM, in which two independent piezo tubes act together during tip-sample approach process and only one shorter tube works during scanning imaging. Both tubes are fixed to the framework, ensuring high rigidity and compactness. The new design enables us to achieve both coarse stepping and imaging functions with a total length of only 25 mm for the two tubes, effectively reducing the length of whole STM, facilitating its integration into narrow low-temperature spaces for imaging applications. Using this device, we obtained high-quality atomic images of graphite sample surfaces at room temperature. Continuous scanning imaging of the same area on Au film at 300 K demonstrates the STM's high stability in both X-Y and Z directions. Atomic images, I-V spectra, and di/dv spectra obtained at 2 K on graphite surface illustrate the excellent application potential of this device in low-temperature environments. Finally, atomic images obtained of graphite in sweeping the magnetic fields from 0 T to 11 T in a huge vibrational dry magnet prove the new STM's excellent performance in extreme conditions. |
| WOS关键词 | LOW-TEMPERATURE ; FIELD |
| 资助项目 | National Natural Science Foundation of China[12374225] |
| WOS研究方向 | Microscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:001318318300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135365]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Sun, Mengbo |
| 作者单位 | 1.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 2.Anhui Xinhua Univ, Dept Gen Educ, Hefei 230088, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jihao,Sun, Mengbo. Piezo tube stacked scanning tunneling microscope for use in extreme and confined environments[J]. MICRON,2024,187. |
| APA | Wang, Jihao,&Sun, Mengbo.(2024).Piezo tube stacked scanning tunneling microscope for use in extreme and confined environments.MICRON,187. |
| MLA | Wang, Jihao,et al."Piezo tube stacked scanning tunneling microscope for use in extreme and confined environments".MICRON 187(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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