Two-Component Dynamics of the Order Parameter of High Temperature Bi2Sr2CaCu2O8+δ Superconductors Revealed by Time-Resolved Raman Scattering
R. P. Saichu, I. Mahns, A. Goos, S. Binder, P. May, S. G. Singer, B. Schulz, A. Rusydi, J. Unterhinninghofen, D. Manske, P. Guptasarma, M. S. Williamsen, M. Rübhausen
DOI 10.1103/PhysRevLett.102.177004 · Physical Review Letters
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 study the dynamics of the superconducting order parameter in the high-Tc cuprate Bi2Sr2CaCu2O8+δ by employing a novel time-resolved pump-probe Raman experiment. We find two different coupling mechanisms that contribute equally to the pair-breaking peak. One coupling sets in very fast at 2 ps and relaxes slowly, while the other one is delayed and sets in roughly at 5 ps and relaxes fast. A model that couples holes through phonons is able to reproduce one part of the condensate dynamics; thus, we argue that hole-spin interactions are of importance as well.
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. | 82 | Pressure not reported | unknown |
Similar papers
Interlayer tunneling spectroscopy of Bi2Sr2CaCu2O8+δ: A look from inside on the doping phase diagram of high-Tc superconductors
similarity 0.96V. M. Krasnov
Source status unknown — claims are unverified
Pairing symmetry and localization probed by electronic Raman scattering in disordered high-Tc superconductors
similarity 0.96O. V. Misochko et al.
Source status unknown — claims are unverified
Ultrafast Raman probe of the photoinduced superconducting to normal state transition in the cuprate Bi2Sr2CaCu2O8+δ
similarity 0.95Laurène Gatuingt et al.
Source status unknown — claims are unverified
Electronic Inhomogeneity and Breakdown of the Universal Thermal Conductivity of Cuprate Superconductors
similarity 0.95X. F. Sun et al.
Source status unknown — claims are unverified
Three energy scales in the superconducting state of hole-doped cuprates detected by electronic Raman scattering
similarity 0.95S. Benhabib et al.
Source status unknown — claims are unverified
Temperature-modulation analysis of superconductivity-induced transfer of in-plane spectral weight in Bi2Sr2CaCu2O8
similarity 0.95A. B. Kuzmenko et al.
Source status unknown — claims are unverified