Local-moment fluctuations in the optimally doped high-Tc superconductor YBa2Cu3O6.95
D. Reznik, J.-P. Ismer, I. Eremin, L. Pintschovius, T. Wolf, M. Arai, Y. Endoh, T. Masui, S. Tajima
DOI 10.1103/PhysRevB.78.132503 · 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 present results of neutron scattering experiments on YBa2Cu3O6.95 (YBCO) (Tc=93 K). Our results indicate that magnetic collective modes due to correlated local moments are present both above and below Tc in optimally doped YBCO. The magnon-like modes are robust and not overdamped by itinerant particle-hole excitations. We compare the experimental results to predictions of the Fermi-liquid (FL) theory in the random phase approximation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | unknown |
| YBa2Cu3O6.6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | unknown |
Similar papers
Spin fluctuations in superconducting YBa2Cu3O6.5
similarity 0.96J. M. Tranquada et al.
Source status unknown — claims are unverified
Intrinsic electronic superconducting phases at 60K and 90K in double-layer YBa2Cu3O6+δ
similarity 0.95T. Honma & P. H. Hor
Source status unknown — claims are unverified
Scaling of the superfluid density in high-temperature superconductors
similarity 0.95C. C. Homes et al.
Source status unknown — claims are unverified
Lattice effects observed by the isotope-difference pair density function of the YBa263/65Cu3O6.92 superconductor
similarity 0.94Despina Louca et al.
Source status unknown — claims are unverified
Pressure dependence of Tc to 17 GPa with and without relaxation effects in superconducting YBa2Cu3Ox
similarity 0.94S. Sadewasser et al.
Source status unknown — claims are unverified
Anomalous doping dependence of fluctuation-induced diamagnetism in Y1−xCaxBa2Cu3Oy superconductors
similarity 0.94A. Lascialfari et al.
Source status unknown — claims are unverified