Low cost switching circuit for van der Pauw resistivity and Hall measurements at various temperatures
Published in Instrumentation Science & Technology, 2025
To study materials undergoing metal-insulator transitions, we developed an automated system for resistivity and Hall measurements using an Arduino-controlled switching circuit and LabVIEW interface. This setup serves as a low-cost alternative for measuring resistivity using the van der Pauw method and was successfully tested on V₂O₃ thin films. Our results not only captured the metal-insulator transition around 100–115 K but also produced Hall effect data consistent with commercial systems.
Recommended citation: Cáceres, V. et al. (2024). "Low cost switching circuit for van der Pauw resistivity and Hall measurements at various temperatures." Instrumentation Science & Technology. pp. 1–12. doi: 10.1080/10739149.2024.2431967.
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