Observation of a narrow superconducting transition at 6 GHz in crystals of YBa2Cu3O7
D. L. Rubin, K. Green, J. Gruschus, J. Kirchgessner, D. Moffat, H. Padamsee, J. Sears, Q. S. Shu, L. F. Schneemeyer, J. V. Waszczak
DOI 10.1103/PhysRevB.38.6538 · 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 report measurements of the temperature dependence of the surface resistivity of highquality YBa2Cu3O7 crystals at 5.95 GHz. A narrow transition with 89-K onset is observed. Resistivity in the normal state is found to be Rnorm=126×10−3 Ω. We establish an upper limit for the resistivity at 77 K of 1.0×10−3 Ω and at 2 K of 1.5×10−5 Ω. The dissipation in four crystals with a total area of about 20 mm2 is measured to be nearly independent of peak microwave magnetic field over the range of 0.5 to 93 G in sharp contrast to the strong field dependence observed in bulk sintered samples.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure not reported | unknown |
Similar papers
Superconducting fluctuations in the microwave conductivity of YBa2Cu3O7−δ single crystals
similarity 0.97I. Ukrainczyk & A. Dulčić
Source status unknown — claims are unverified
High-field scaling behavior of thermodynamic and transport quantities of YBa2Cu3O7−δ near the superconducting transition
similarity 0.96U. Welp et al.
Source status unknown — claims are unverified
New approach to characterizing the high-temperature superconducting transition
similarity 0.96T. Datta et al.
Source status unknown — claims are unverified
Long-term nonlogarithmic magnetic relaxation in single-crystal YBa2Cu3O7 superconductors
similarity 0.95J. R. Thompson et al.
Source status unknown — claims are unverified
Superconductivity-induced effects on phononic and electronic Raman scattering in twin-free YBa2Cu3O7−x single crystals
similarity 0.95M. F. Limonov et al.
Source status unknown — claims are unverified
Temperature dependence of the lower critical field of high-Tc superconducting crystals near Tc
similarity 0.95F. Mrowka et al.
Source status unknown — claims are unverified