Bandwidth-control orbital-selective delocalization of 4f electrons in epitaxial Ce films

oleh: Yi Wu, Yuan Fang, Peng Li, Zhiguang Xiao, Hao Zheng, Huiqiu Yuan, Chao Cao, Yi-feng Yang, Yang Liu

Format: Article
Diterbitkan: Nature Portfolio 2021-05-01

Deskripsi

The mechanism of the delocalization transition of 4f electrons in closely-packed Ce metal has been debated. Here, the authors present photoemission evidence for bandwidth-controlled Mott delocalization in a previously unreported structural phase of thin epitaxial Ce films obtained by thermal annealing.