Development of high-resolution photoemission spectroscopy for small-size superconductor

为了研究超导体的电子结构，如晶体尺寸小或缺少解理面等，我们开发了在小尺寸样品上进行高分辨率角分辨光发射光谱的实验技术和装置。因此，我们已经成功地直接观察到最近发现的外来化合物，如Fe-pnictide超导体和水泥C12A7电化物的基本电子结构和/或超导间隙。

To investigate the electronic structure of superconductors which has experimental difficulty such as tiny size of crystal and/or absence cleavage plane, we have developed experimental techniques and apparatus for high-resolution angle resolved photoemission spectroscopy on a small-size sample. As a result, we have succeeded in directly observing the basal electronic structure and/or superconducting gap for recently discovered exotic compounds such as Fe-pnictide superconductors and cement C12A7 electride.