Absence of nonlinear Meissner effect in YBa2Cu3O6.95
A. Carrington, R. W. Giannetta, J. T. Kim, J. Giapintzakis
DOI 10.1103/PhysRevB.59.R14173 · Physical Review B
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Abstract
We present measurements of the field and temperature dependence of the penetration depth (λ) in high purity, untwinned single crystals of YBa2Cu3O6.95 in all three crystallographic directions. The temperature dependence of λ is linear down to low temperatures, showing that our crystals are extremely clean. Both the magnitude and temperature dependence of the field dependent correction to λ, however, are considerably different from that predicted from the theory of the nonlinear Meissner effect for a d-wave superconductor (Yip-Sauls theory). Our results suggest that the Yip-Sauls effect is either absent or is unobservably small in the Meissner state of YBa2Cu3O6.95.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.4 | Pressure not reported | unknown |
| YBa2Cu3O6.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93.6 | Pressure not reported | unknown |
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