AI 中文总结
介绍低成本3D打印高真空平台，用于室温量子输运测量。以铜测试，金为基准，提取表观功函数，其分布符合非中心卡方分布，与文献匹配且契合理论模型，为活性材料纳米研究建立可及可重复框架。
AI 中文摘要
我们展示了一个低成本的3D打印高真空平台，集成了机械可控断裂结系统和定制对数放大器用于室温量子输运测量。以铜为高反应性测试案例，在高真空和无水甘油中成功分辨出1G₀电导量子。同时，以金为稳健基准，从数千条跨越环境空气、真空和甘油的隧穿轨迹中系统提取表观功函数（ϕ）。分析表明ϕ的统计分布严格遵循非中心卡方分布。所得金的功函数在所有环境中与现有文献匹配，虽低于体值但与考虑原子尺度粗糙度、顶端几何形状和环境吸附物的理论模型完美契合。该方法为活性材料的系统纳米尺度研究建立了可及且可重复的框架。
英文摘要
We present a low-cost, 3D-printed high-vacuum platform integrating a mechanically controllable break-junction system and a custom logarithmic amplifier for room-temperature quantum transport measurements. Using copper as a highly reactive test case, we successfully resolve the $1G_0$ conductance quantum under both high vacuum and anhydrous glycerol, demonstrating the effectiveness of these environments against rapid atmospheric oxidation. In parallel, utilizing gold as a robust benchmark, we systematically extract the apparent work function ($ϕ$) from thousands of tunneling traces across ambient air, vacuum, and glycerol. Our analysis demonstrates that the statistical distribution of $ϕ$ rigorously follows a non-central chi-square distribution. The obtained gold work functions match existing literature across all environments. Although lower than bulk values, they perfectly align with theoretical models accounting for atomic-scale roughness, apex geometry, and environmental adsorbates. Ultimately, this methodology establishes an accessible and reproducible framework for systematic nanoscale research on reactive materials.
Comments8 pages, 4 figures, supplementary material
