Explosion Compaction and Synthesis of β-FeSe Superconductor Aided by Post-thermal Treatment
A β-FeSe superconductor was synthesized by use of the explosive compaction aided by post-thermal treatment. The temperature of the explosive compact was measured during the experiment to be 58.2 ± 0.5°C, and its intrinsic mechanism were analyzed through theoretical simulation. The superconducting properties of the sample were measured using a physical property measurement system. The results shown that the compact before heat treatment exhibited semiconducting characteristics, the compact after heat treatment at a maximum temperature of 500°C exhibited superconductivity at 8 K. The sample exhibited metallic behavior prior to reaching 8 K. An anomaly in resistance was observed in the vicinity of 90 K, which indicated a structural phase transition. The diamagnetic fraction volume reached 47% calculated based on ZFC data. It is evident that the explosive compaction methods can serve as a valuable adjunct to existing research methodologies for superconducting materials.
危险品化学品经营许可证（带存储）