Crystal structure of the high-Tc superconductor Ba2YCu3O7+x using neutron diffraction
Q. W. Yan, P. L. Zhang, L. Jin, Z. G. Shen, J. K. Zhao, Y. Ren, Y. N. Wei, T. D. Mao, C. X. Liu, T. S. Ning, K. Sun, Q. S. Yang
DOI 10.1103/PhysRevB.36.5599 · Physical Review B
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Abstract
The crystal structure of the high-Tc superconductor Ba2YCu3O7+x has been studied using neutron diffraction. This compound has an orthorhombic structure with space group Pmmm and lattice parameters a=3.8132 Å, b=3.8774 Å, and c=11.653 Å. We found an occupancy of 0.1 for oxygen atoms at the 1b site and a total number of oxygen atom per unit cell of 7.1. The high quality of the sample used may be associated with the partial occupation at the 1b site by oxygen atoms.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba2YCu3O7.1 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | onset |
| Ba2YCu3O7.1 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | onset |
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