Strongly Correlated f-Electron Study in Plutonium Compounds

该项目旨在发现包括钚在内的锕系化合物中的新材料和新现象，钚因其辐射而难以在实验中处理。我们开发了一种利用长寿命同位素^<242>Pu进行样品制备的方法，以实现精确的物理性质测量，并成功制备了金属间化合物pud_5al_2。我们还发现了一个新的化合物NpPd_5Al_2，由于5f基重电子态而表现出超导性。

This project aims to find new materials and new phenomena in actinide compounds including plutonium, which is difficult to handle experimentally because of its radiation. We developed a sample preparation method using a long-life isotope of ^<242>Pu to enable the precise physical property measurements and succeeded to prepare intermetallic compound PuPd_5Al_2. We also found a new compound NpPd_5Al_2 which showed superconductivity due to 5f-based heavy electron states.