Evolution from a charge-ordered insulator to a high-temperature superconductor in Bi2Sr2(Ca,Dy)Cu2O8+δ

Changwei Zou, Jaewon Choi, Qizhi Li, Shusen Ye, Chaohui Yin, Mirian Garcia-Fernandez, Stefano Agrestini, Qingzheng Qiu, Xinqiang Cai, Qian Xiao, Xingjiang Zhou, Ke-Jin Zhou, Yayu Wang () and Yingying Peng ()
Additional contact information
Changwei Zou: School of Physics, Peking University
Jaewon Choi: Harwell Campus
Qizhi Li: School of Physics, Peking University
Shusen Ye: Department of Physics, Tsinghua University
Chaohui Yin: Institute of Physics, Chinese Academy of Sciences
Mirian Garcia-Fernandez: Harwell Campus
Stefano Agrestini: Harwell Campus
Qingzheng Qiu: School of Physics, Peking University
Xinqiang Cai: School of Physics, Peking University
Qian Xiao: School of Physics, Peking University
Xingjiang Zhou: Institute of Physics, Chinese Academy of Sciences
Ke-Jin Zhou: Harwell Campus
Yayu Wang: Department of Physics, Tsinghua University
Yingying Peng: School of Physics, Peking University

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract How Cooper pairs form and condense has been the main challenge in the physics of copper-oxide high-temperature superconductors. Great efforts have been made in the ‘underdoped’ region of the phase diagram, through doping a Mott insulator or cooling a strange metal. However, there is still no consensus on how superconductivity emerges when electron-electron correlations dominate and the Fermi surface is missing. To address this issue, here we carry out high-resolution resonant inelastic X-ray scattering and scanning tunneling microscopy studies on prototype cuprates Bi2Sr2Ca0.6Dy0.4Cu2O8+δ near the onset of superconductivity, combining bulk and surface, momentum- and real-space information. We show that an incipient charge order exists in the antiferromagnetic regime down to 0.04 holes per CuO2 unit, entangled with a particle-hole asymmetric pseudogap. The charge order induces an intensity anomaly in the bond-buckling phonon branch, which exhibits an abrupt increase once the system enters the superconducting dome. Our results suggest that the Cooper pairs grow out of a charge-ordered insulating state, and then condense accompanied by an enhanced interplay between charge excitations and electron-phonon coupling.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-52124-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52124-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-52124-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().