Three energy scales in the superconducting state of hole-doped cuprates detected by electronic Raman scattering
S. Benhabib, Y. Gallais, M. Cazayous, M.-A. Méasson, R. D. Zhong, J. Schneeloch, A. Forget, G. D. Gu, D. Colson, A. Sacuto
DOI 10.1103/PhysRevB.92.134502 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We explore by electronic Raman scattering the superconducting state of the Bi2Sr2CaCu2O8+δ (Bi-2212) crystal by performing a fine-tuned doping study. We find three distinct energy scales in A1g, B1g, and B2g symmetries which show three distinct doping dependencies. Above p=0.22, the three energies merge; below p=0.12, the A1g scale is no longer detectable, while the B1g and B2g scales become constant in energy. In between, the A1g and B1g scales increase monotonically with underdoping, while the B2g one exhibits a maximum at p=0.16. The three superconducting energy scales appear to be a universal feature of hole-doped cuprates. We propose that the nontrivial doping dependencies of the three scales originate from the Fermi-surface changes and reveal competing orders inside the superconducting dome.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 65 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 70 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 50 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Energy density driven ultrafast electronic excitations in a cuprate superconductor
similarity 0.96Alessandra Milloch et al.
Source status unknown — claims are unverified
Low-energy quasiparticles in cuprate superconductors: A quantitative analysis
similarity 0.96May Chiao et al.
Source status unknown — claims are unverified
(Ir)Relevance of Disorder for Superconductivity in Cuprates
similarity 0.96R. Caruso et al.
Source status unknown — claims are unverified
Effects of strong magnetic fields on pairing fluctuations in high-temperature superconductors
similarity 0.96M. Eschrig et al.
Source status unknown — claims are unverified
Electronic Raman scattering in high-Tc superconductors: A probe of dx2-y2 pairing
similarity 0.96T. P. Devereaux et al.
Source status unknown — claims are unverified
Weak-coupling model of spin fluctuations in the superconducting state of the layered cuprates
similarity 0.96N. Bulut & D. J. Scalapino
Source status unknown — claims are unverified