Synthesis and superconducting critical temperature of YBa2Cu3O7−δ18

E. Garcia; R. R. Ryan; N. N. Sauer; Z. Fisk; B. Pierce; M. Fluss; L. Bernardez

doi:10.1103/PhysRevB.38.2900

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Synthesis and superconducting critical temperature of YBa2Cu3O7−δ18

E. Garcia, R. R. Ryan, N. N. Sauer, Z. Fisk, B. Pierce, M. Fluss, L. Bernardez

DOI 10.1103/PhysRevB.38.2900 · Physical Review B

T1

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Abstract

YBa2Cu3O7−δ18 (90% O18, 44% O18) has been synthesized from the elements in order to minimize the possibility of preferential substitution at different crystallographic sites. Magnetic-flux exclusion measurements show that the Tc of the substituted material shifts by no more than ∼0.2 K from the material synthesized with natural-abundance O2.

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.	90.85	Pressure not reported	unknown
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	91.15	Pressure not reported	unknown
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90.6	Pressure not reported	unknown