Synthesis and Superconductivity of Ba2Ti2(Fe1−x Cr x )2As4O

Ba2Ti2(Fe1−x null null null null null null null null null null null null null null null Cr null null null null null null null null null null null null null null null null null x null null null null null null null null null null null null null null null )2As4O (0 ≤ x ≤ 8%) compounds are synthesized by solid-state reaction and their structure and superconductivity are studied with x-ray diffraction, electric resistivity, and magnetization...