Magneto-thermal-switching properties of superconducting Nb

Recently, thermal switching has been extensively studied because it is a key component for thermal management in electronic devices. Here, we show a huge magneto-thermal-switching ratio (MTSR) in pure Nb at temperatures lower than its superconducting transition temperature (T (c) = 9.2 K). The MTSR increases with decreasing temperature, and an MTSR of 650% was observed at T = 2.5 K under H = 4.0 kOe. Thermal switching in superconductors with a huge MTSR will be useful for the improvement of the performance of low-temperature electronic devices.

Automated summary

Recently, researchers have been studying thermal switching as an important component for thermal management in electronic devices. In this study, a significant magneto-thermal-switching ratio (MTSR) was observed in pure Nb at temperatures below its superconducting transition temperature. The MTSR increased as the temperature decreased, reaching 650% at a temperature of 2.5 K and a magnetic field of 4.0 kOe. The thermal switching in superconductors with a large MTSR could greatly enhance the performance of low-temperature electronic devices.