Figure 1

(a) \(\sqrt{2}\times \sqrt{2}\times 2\) Supercell of YBa1−xSr x CuFeO5 showing FeO5 and CuO5 square pyramids in golden and blue colours respectively. (b) Experimentally observed magnetic structure of commensurate phase14.

(a) \(\sqrt{2}\times \sqrt{2}\times 2\) Supercell of YBa1−xSr x CuFeO5 showing FeO5 and CuO5 square pyramids in golden and blue colours respectively. (b) Experimentally observed magnetic structure of commensurate phase14.