Superconductivity of Y1Ba2(Cu1-xFex)3Oy
- 1 October 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (10A) , L1660
- https://doi.org/10.1143/jjap.26.l1660
Abstract
A systematic study on the superconductivity of Y1Ba2(Cu1-x Fe x )3O y has been made down to 30 mK for various x values. The critical temperature decreases linearly with x. The complete Meissner effect is retained down to 30 mK, up to about x=0.10. The crystal structure of the superconducting phase was found to transform from the orthorhombic to the tetragonal between x=0.02 and 0.05. It is concluded that a branching effect of a one-dimensional chain of Cu1-O through Fe impurities is essential for this structure transition. The supercurrent is considered to flow on the two-dimensional sheets of Cu2.Keywords
This publication has 3 references indexed in Scilit:
- A Single Crystal High Temperature X-Ray Study of Orthorhombic Ba2YCu3-xO7-y SuperconductorJapanese Journal of Applied Physics, 1987
- Crystal Structure of Superconductor Ba2YCu2.89O6.80Japanese Journal of Applied Physics, 1987
- Rietveld Refinement of the Structure of Ba2YCu3O7-x with Neutron Powder Diffraction DataJapanese Journal of Applied Physics, 1987