Magnetic-Field-Induced Finite-Size Effect in the High-Temperature Superconductor YBa2Cu3O7−δ: A Comparison with Rotating Superfluid He4
R. Lortz, C. Meingast, A. I. Rykov, S. Tajima
DOI 10.1103/PhysRevLett.91.207001 · 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
The effect of strong magnetic fields (11 T) on superconductivity in YBa2Cu3O7−δ is investigated using high-resolution thermal expansion. We show that the field-induced broadening of the superconducting transition is due to a finite-size effect resulting from the field-induced vortex-vortex length scale. The physics of this broadening has recently been elucidated for the closely related case of rotating superfluid He4 [R. Haussmann, Phys. Rev. B 60, 12 373 (1999)]. Our results imply that the primary effect of magnetic fields of the order of 10 T is to destroy the phase coherence; the pairing, on the other hand, appears to be quite insensitive to these fields.
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. | 91.4 | Pressure unresolved | unknown |
Similar papers
Magnetic-field-induced finite-size effect in the high-temperature superconductor YBa2Cu3O7-a comparison to rotating superfluid 4 He
similarity 1.00R. Lortz et al. · 2003 · arXiv:cond-mat/0307109
Source status unknown — claims are unverified
Thermodynamics of a heavy-ion-irradiated superconductor: The zero-field transition
similarity 0.95C. J. van der Beek et al.
Source status unknown — claims are unverified
Critical fluctuations and lowest-Landau-level scaling of the specific heat of high-temperature superconductors
similarity 0.95Stephen W. Pierson et al.
Source status unknown — claims are unverified
Superconductivity in Strongly Correlated Electronic Systems and Confinement versus Deconfinement Phenomenon
similarity 0.95P. B. Wiegmann
Source status unknown — claims are unverified
Heat-capacity investigations near the normal-superconducting transition of YBa2Cu3O7
similarity 0.95B. Zhou et al.
Source status unknown — claims are unverified
Superconducting fluctuations in specific heat in a magnetic field: dimensional crossover
similarity 0.95Khandker F. Quader & Elihu Abrahams
Source status unknown — claims are unverified