Selective hybridization between the main band and the superstructure band in the superconductor
Journal Article
·
· Physical Review B
more »
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Beijing Academy of Quantum Information Sciences (China)
- Chinese Academy of Sciences (CAS), Beijing (China)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Beijing Academy of Quantum Information Sciences (China); Songshan Lake Materials Lab., Guangdong (China)
High-resolution laser-based angle-resolved photoemission measurements have been carried out on Bi2Sr2CaCu2O8+δ (Bi2212) and Bi2Sr2–xLaxCuO6+δ (Bi2201) superconductors. Unexpected hybridization between the main band and the superstructure band in Bi2212 is clearly revealed. In the momentum space where one main Fermi surface intersects with one superstructure Fermi surface, four bands are observed instead of two. The hybridization exists in both the superconducting state and the normal state, and in Bi2212 samples with different doping levels. Such a hybridization is not observed in Bi2201. This phenomenon can be understood by considering the bilayer splitting in Bi2212, the selective hybridization of two bands with peculiar combinations, and the altered matrix element effects of the hybridized bands. These observations indicate that the origin of the superstructure bands is intrinsic to the CuO2 planes. Furthermore, understanding physical properties and superconductivity in Bi2212 should consider the complete Fermi surface topology which involves the main bands, the superstructure bands, and their interactions.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- National Science Foundation of China; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1603292
- Report Number(s):
- BNL--213689-2020-JAAM
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 1 Vol. 101; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Raman and ARPES combined study on the connection between the existence of the pseudogap and the topology of the Fermi surface in
Magnetic excitations and phonons simultaneously studied by resonant inelastic x-ray scattering in optimally doped
Doubling of the Bands in Overdoped Bi{sub 2}Sr{sub 2}CaCu{sub 2}O
Journal Article
·
Tue May 29 20:00:00 EDT 2018
· Physical Review B
·
OSTI ID:1462409
Magnetic excitations and phonons simultaneously studied by resonant inelastic x-ray scattering in optimally doped
Journal Article
·
Sun Aug 23 20:00:00 EDT 2015
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:1326986
Doubling of the Bands in Overdoped Bi{sub 2}Sr{sub 2}CaCu{sub 2}O
Journal Article
·
Mon Sep 10 00:00:00 EDT 2001
· Physical Review Letters
·
OSTI ID:40277596