Structural and superconducting properties of Bi2Sr2Ca(Cu1-yCoy)O8+d single crystals

Structural and superconducting properties of Bi2Sr2Ca(Cu1-yCoy)O8+d single crystals / T. Bollmeier ... - In: Physica / C. 198. 1992. S. 33-4

Twinning of YBa2Cu307 thin films on different substrates

The twinning of YBa2Cu3O7 (YBCO) thin films with c-axis orientation on (001) MgO, (001) SrTiO3, (012) LaAlO3, (110) NdGaO3 and (001) NdGaO3 substrates, prepared by laser ablation, has been examined using a combination of ϕ and θ/2θ scans at a four-circle diffractometer. On all substrates, except for (001) NdGaO3, the tetragonal to orthorhombal phase transition results in four different orientations of YBCO twins relating to the substrate. On (001) NdGaO3 only two different twin orientations, accompanied by a slight lattice monoclinization, has been observed