Xuyuanji
|
- Professional Title:Lecturer
Gender:Male
Discipline:Condensed Matter Physics
Degree:博士
School/Department:数理学院
E-Mail:
Contact Information
- PostalAddress：
- Email：
- Paper Publications
Observation of flat bands due to band hybridization in the -electron heavy-fermion compound CaCu3Ru4O12
Release time:2020-07-06 Hits:
- DOI number:10.1103/PhysRevB.102.035111
- Journal:Physical Review B
- Abstract:We report angle-resolved photoemission spectroscopy and first-principles numerical calculations for the band-structure evolution of the 3�� heavy-fermion compound CaCu3Ru4O12. Below ��∼200 K, we observed an emergent hybridization gap between the Cu 3d-electron-like band and the Ru 4d-hole-like band and the resulting flat band features near the Fermi level centered around the Brillouin-zone corner. Our results confirm the non-Kondo nature of the CaCu3Ru4O12, in which the Cu3��xy electrons are less correlated and not in the Kondo limit. Comparison between theory and experiment also suggests that other mechanisms may be needed to give a full quantitative explanation of the peculiar properties in this material.
- Indexed by:Journal paper
- Translation or Not:no
- Date of Publication:2020-01-01
- Links to published journals:https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.035111