When low- and high-energy electronic responses meet in cuprate superconductors
J. Chang, S. Pailhés, M. Shi, M. Månsson, T. Claesson, O. Tjernberg, J. Voigt, V. Perez, L. Patthey, N. Momono, M. Oda, M. Ido, A. Schnyder, C. Mudry, J. Mesot
DOI 10.1103/PhysRevB.75.224508 · 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
The existence of coherent quasiparticles near the Fermi energy in the low-temperature state of high-temperature superconductors has been well established by angle-resolved photoemission spectroscopy (ARPES). We present a study of La1.83Sr0.17CuO4 in the superconducting state and report an abrupt change in the quasiparticle spectral function, as we follow the dispersion of the ARPES signal from the Fermi energy to 0.6eV. The interruption in the quasiparticle dispersion separates coherent quasiparticle peaks at low energies from broad incoherent excitations at high energies. We find that the boundary between these low-energy and high-energy features exhibits a cosine-shaped momentum dependence, reminiscent of the superconducting d-wave gap. Further intriguing similarities between characteristics of the incoherent excitations and quasiparticle properties suggest a close relation between the electronic response at high and low energies in cuprate superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.83Sr0.17CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 36 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
When low- and high-energy electronic responses meet in cuprate superconductors
similarity 0.99J. Chang et al. · 2006 · arXiv:cond-mat/0610880
Source status unknown — claims are unverified
Electronic structure of kinetic energy driven superconductors in the presence of bilayer splitting
similarity 0.97Yu Lan et al.
Source status unknown — claims are unverified
Topological theory of electron-phonon interactions in high-temperature superconductors
similarity 0.97J. C. Phillips
Source status unknown — claims are unverified
Raising Bi-O Bands above the Fermi Energy Level of Hole-Doped Bi2Sr2CaCu2O8+δ and Other Cuprate Superconductors
similarity 0.96Hsin Lin et al.
Source status unknown — claims are unverified
Emergence of light-induced superconducting-like state from the charge density wave state in high-Tc cuprate superconductors
similarity 0.96Morihiko Nishida et al.
Source status unknown — claims are unverified
Evidence for the heavy-fermion normal state of high-temperature superconductors from the theory of spectroscopy
similarity 0.96P. C. Pattnaik & D. M. Newns
Source status unknown — claims are unverified