Growth technology and characteristics of thin strontium iridate films and iridate–cuprate superconductor heterostructures
2017
A technology for epitaxial growth of thin films of strontium iridate (Sr2IrO4) and related heterostructures with cuprate superconductor (Sr2IrO4/YBa2Cu3O7 − δ) has been proposed and developed. It is established that the two-layer structure grows epitaxially and the cuprate superconductor layer has the same critical temperature as that (~91 K) of an autonomous film. Crystallographic parameters of the obtained iridate films are close to tabulated values and the temperature dependence of their electric resistivity is consistent with published data.
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