Cargando…

Fermi-surface-free superconductivity in underdoped (Bi,Pb)(Sr,La)(2)CuO(6+δ) (Bi2201)

Fermi-surface-free superconductivity arises when the superconducting order pulls down spectral weight from a band that is completely above the Fermi energy in the normal state. We show that this can arise in hole-doped cuprates when a competing order causes a reconstruction of the Fermi surface. The...

Descripción completa

Detalles Bibliográficos
Autores principales: Mistark, Peter, Hafiz, Hasnain, Markiewicz, Robert S., Bansil, Arun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4471721/
https://www.ncbi.nlm.nih.gov/pubmed/26084605
http://dx.doi.org/10.1038/srep09739
Descripción
Sumario:Fermi-surface-free superconductivity arises when the superconducting order pulls down spectral weight from a band that is completely above the Fermi energy in the normal state. We show that this can arise in hole-doped cuprates when a competing order causes a reconstruction of the Fermi surface. The change in Fermi surface topology is accompanied by a characteristic rise in the spectral weight. Our results support the presence of a trisected superconducting dome, and suggest that superconductivity is responsible for stabilizing the (π,π) magnetic order at higher doping.