Author:
Liu Haijiang,Xu Yuanji,Zhong Yigui,Guan Jianyu,Kong Lingyuan,Ma Junzhang,Huang Yaobo,Chen Qiuyun,Chen Genfu,Shi Ming,Yang Yi-feng,Ding Hong
Abstract
We utilize high-resolution resonant angle-resolved photoemission spectroscopy (ARPES) to study the band structure and hybridization effect of the heavy-fermion compound Ce2IrIn8. We observe a nearly flat band at the binding energy of 7 meV below the coherent temperature
T
coh
∼
40
K
, which characterizes the electrical resistance maximum and indicates the onset temperature of hybridization. However, the Fermi vector and the Fermi surface volume have little change around T
coh, which challenges the widely believed evolution from a high-temperature small Fermi surface to a low-temperature large Fermi surface. Our experimental results of the band structure fit well with the density functional theory plus dynamic mean-field theory calculations.
Subject
General Physics and Astronomy
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献