Micrometer function imaging technique for Fermiology of strongly correlated electron systems

我们在微聚焦真空-紫外角分辨光电子能谱光束线BL7U(@UVSOR-II)上发展了一种新的光谱研究技术--微米函数成像，用于强关联电子系统的“微米功能成像”。当我们将这项技术应用于准一维有机导体(TMTSF)2PF6，其中辐射损伤和表面域干扰了本征的“费米学”研究时，我们成功地观察到了由准粒子色散形成的Luttinger表面，这表明了强烈的电子-声子相互作用。

We have developed a new spectroscopic research technique "micrometer function imaging" for "Fermiology" of strongly correlated electron systems, at the micro-focus vacuum-ultraviolet synchrotron angle-resolved photoemission spectroscopy beamline BL7U(@UVSOR-II). When we applied the technique to the quasi-one-dimensional organic conductor (TMTSF)2PF6, where the radiation damage and the surface domains disturb the intrinsic "Fermiology" research, we have successfully observed the Luttinger surface formed by the quasi-particle dispersion, which is suggestive of the strong electron-phonon interactions.