q dependence of the dynamic susceptibility χ’’(q,ω) in superconducting YBa2Cu3O6.6 (Tc=46 K)
B. J. Sternlieb, J. M. Tranquada, G. Shirane, M. Sato, S. Shamoto
DOI 10.1103/PhysRevB.50.12915 · 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
q-dependent neutron-scattering measurements of the dynamic susceptibility χ’’(q,ω) in superconducting YBa2Cu3O6.6 are presented. The observed magnetic scattering near the antiferromagnetic zone center has a nontrivial, approximately flat-topped q dependence. A separable model of the susceptibility, χ’’(q,ω)=χ’’(ω)F(q), is found to describe this scattering at all energies in the range 2 meV ≤ħω≤40 meV. Measurements at temperatures above and below Tc=46 K indicate that the q-dependent ‘‘shape’’ function, F(q), is the same in both the superconducting and normal states. A phenomenological expression for F(q) is presented and the physical significance of its parametrization is discussed. These results are compared with current theories in the literature.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 46 | Pressure not reported | unknown |
| YBa2Cu3O6.6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 53 | Pressure not reported | unknown |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Magnetic correlations in YBa2Cu3O6+x at superconducting concentrations
similarity 0.96G. Shirane et al.
Source status unknown — claims are unverified
Evolution of the resonance and incommensurate spin fluctuations in superconducting YBa2Cu3O6+x
similarity 0.96Pengcheng Dai et al.
Source status unknown — claims are unverified
Magnetic order in YBa2Cu3O6+x superconductors
similarity 0.96H. A. Mook et al.
Source status unknown — claims are unverified
Importance of structural instability to high-temperature superconductivity
similarity 0.95A. Bussmann-Holder et al.
Source status unknown — claims are unverified
Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy
similarity 0.95M. Hücker et al.
Source status unknown — claims are unverified
Superconducting fluctuation effects on the electron spin susceptibility in YBa2Cu3O6.95
similarity 0.95H. N. Bachman et al.
Source status unknown — claims are unverified