Unstable Flux Flow due to Heated Electrons in Superconducting Films
Milind N. Kunchur
DOI 10.1103/PhysRevLett.89.137005 · 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
A flux instability occurs in superconductors at low temperatures, where e−e scattering is more rapid than e−ph, whereby the dissipation significantly elevates the electronic temperature while maintaining a thermal-like distribution function. The reduction in condensate and rise in resistivity produce a nonmonotonic current-voltage response. In contrast to the Larkin-Ovchinnikov instability where the vortex shrinks, in this scenario the vortex expands and the quasiparticle population rises. Measurements in Y1Ba2Cu3O7−δ agree quantitatively with the distinct predictions of this mechanism.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Y1Ba2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
Similar papers
Unstable flux flow due to heated electrons in YBaCuO films
similarity 0.98Milind N. Kunchur · 2002 · arXiv:cond-mat/0208256
Source status unknown — claims are unverified
Defect mechanism of photoinduced superconductivity in YBa2Cu3O6+x
similarity 0.95J. F. Federici et al.
Source status unknown — claims are unverified
Sharp resonant multiplet in femtosecond optical pair-breaking spectroscopy of optimally doped, underdoped, and Zn-doped YBa2Cu3O7−δ: Transient insulating regions in the superconducting state
similarity 0.94Eric Li et al.
Source status unknown — claims are unverified
Suppression of low-energy Andreev states by a supercurrent in YBa2Cu3O7−δ
similarity 0.94J. Ngai et al.
Source status unknown — claims are unverified
Electronic Instability at High Flux-Flow Velocities in High-Tc Superconducting Films
similarity 0.94S. G. Doettinger et al.
Source status unknown — claims are unverified
Imaging of electromagnetic resonances in a YBa2Cu3O7−δ bicrystal grain-boundary Josephson junction
similarity 0.94T. Doderer et al.
Source status unknown — claims are unverified