Effects of Substitution and Substrate Strain on the Structure and Properties of Orthorhombic Eu[sub.1−x]YIx/IMnO[sub.3] Thin Films

* Orthorhombic Eu[sub.1−x]YxMnO[sub.3] (0.0 ≤ x ≤ 0.5) thin films were successfully synthesized by spin-coating. * The film phase evidences an additional contribution to lattice strain with increasing Y-content. * Appreciable modification of magnetic response from bulks to films due to structural distortions. Orthorhombic Eu[sub.1−x]YxMnO[sub.3] (0.0 ≤ x ≤ 0.5) thin films were successfully synthesized by spin-coating. The film phase evidences an additional contribution to lattice strain with increasing Y-content. Appreciable modification of magnetic response from bulks to films due to structural distortions. The effects on the structure and magnetic properties of Eu[sub.1−x]YxMnO[sub.3] (0.0 ≤ x ≤ 0.5) thin films due to lattice strain were investigated and compared with those obtained in equivalent composition ceramics. The films were deposited by spin-coating chemical solution onto Pt\TiO[sub.2]\SiO[sub.2]\Si (100) standard substrates. X-ray diffraction and Raman spectroscopy measurements revealed that all films crystallize in orthorhombic structure with space group Pnma, observing an added contraction of the unit cell with increasing Y-substitution ou Eu, corresponding to a broadening of the Mn-O1-Mn angle and a gradual decrease in magnetic order response.