Effect of uniaxial stress on the superconducting transition in YBa2Cu3O7
U. Welp, M. Grimsditch, S. Fleshler, W. Nessler, J. Downey, G. W. Crabtree, J. Guimpel
DOI 10.1103/PhysRevLett.69.2130 · 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
We present the first direct measurements of Tc as a function of uniaxial stress pi (i=a,b,c) along the crystal axes for an untwinned YBa2Cu3O7−δ single crystal. Tc is linear in pi with slopes dTc/dpa=-2.0±0.2 K/GPa, dTc/dpb=+1.9±0.2 K/GPa, and dTc/dpc=-0.3±0.1 K/GPa. These results confirm predictions based on thermal expansion measurements [C. Meingast et al., Phys. Rev. Lett. 67, 1634 (1991)] and show that the small hydrostatic pressure dependence of Tc in YBa2Cu3O7−δ is due to a cancellation of large and opposite effects in the a-b plane.
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. | 91.5 | Pressure unresolved | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.5 | 0.18 GPa | unknown |
Similar papers
High-field scaling behavior of thermodynamic and transport quantities of YBa2Cu3O7−δ near the superconducting transition
similarity 0.97U. Welp et al.
Source status unknown — claims are unverified
Long-term nonlogarithmic magnetic relaxation in single-crystal YBa2Cu3O7 superconductors
similarity 0.96J. R. Thompson et al.
Source status unknown — claims are unverified
Magnetic-field dependence of planar copper and oxygen spin-lattice relaxation rates in the superconducting state of YBa2Cu3O7
similarity 0.96J. A. Martindale et al.
Source status unknown — claims are unverified
Superconducting properties of aligned crystalline grains of Y1Ba2Cu3O7−δ
similarity 0.96D. E. Farrell et al.
Source status unknown — claims are unverified
Temperature dependence of the upper critical field of type-II superconductors from isothermal magnetization data: Application to high-temperature superconductors
similarity 0.96I. L. Landau & H. R. Ott
Source status unknown — claims are unverified
Anisotropic superconducting properties of YBa2Cu3O7−δ (δ=0.1 and 0.4) untwinned single crystals
similarity 0.96W. Bauhofer et al.
Source status unknown — claims are unverified