Flux-line entanglement in high-Tc superconductors
M. Cristina Marchetti
DOI 10.1103/PhysRevB.43.8012 · 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
In anisotropic high-Tc superconductors an isolated vortex line can wander or diffuse significant distances in a plane normal to the applied field as it traverses the sample. In order to assess whether this effect persists in a dense vortex-line liquid and an entangled flux-liquid phase can arise, a phenomenological mode-coupling calculation of the diffusion constant of a tagged vortex in a dense vortex liquid is presented. The calculation exploits the analogy with the diffusion in real time of a tagged particle in a dense fluid. The renormalized diffusion constant is found to depend only weakly on its bare value for a wide range of magnetic fields. In Y-Ba-Cu-O the diffusion constant of a tagged vortex in a dense vortex liquid is at most ten times smaller than that of an isolated vortex line. It is still large enough that flux-line entanglement will occur in bulk samples.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure not reported | unknown |
Similar papers
Implications of crystal-field and intra-atomic interactions for the electronic structure of high-Tc superconductors
similarity 0.96Frank J. Adrian
Source status unknown — claims are unverified
Flux cutting in high-Tc superconductors
similarity 0.95V. Vlasko-Vlasov et al.
Source status unknown — claims are unverified
Temperature and magnetic-field dependence of quantum creep in various high-Tc superconductors
similarity 0.95A. F. Th. Hoekstra et al.
Source status unknown — claims are unverified
Predictions for impurity-induced Tc suppression in the high-temperature superconductors
similarity 0.95R. J. Radtke et al.
Source status unknown — claims are unverified
Electronic excitations of the YBa2Cu3O7−x superconductor: A study by transmission electron-energy-loss spectroscopy with an electron microprobe
similarity 0.95C. H. Chen et al.
Source status unknown — claims are unverified
Gap Anisotropy in the Layered High Temperature Superconductors
similarity 0.95W. M. Temmerman et al.
Source status unknown — claims are unverified