کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1792240 | 1023638 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Epitaxial La0.9Ca0.1MnO3 films grown on vicinal cut substrates for the investigation of resistivity and thermoelectric anisotropy Epitaxial La0.9Ca0.1MnO3 films grown on vicinal cut substrates for the investigation of resistivity and thermoelectric anisotropy](/preview/png/1792240.png)
La0.9Ca0.1MnO3 thin films have been grown on 5° vicinal cut SrTiO3 (1 0 0) substrates by pulse laser deposition. The single phase and the epitaxial growth aligned to the c-axis of vicinal cut substrates have been studied by X-ray diffraction analysis. The resistivity versus temperature measurements along and perpendicular to the substrate tilted direction show that the resistivity anisotropy ρc/ρab is 22.44 at room temperature, originating from the intrinsic Jahn–Teller distortion, strain and defects. The Seebeck coefficient anisotropy ΔS of 0.317 μV K−1 attained by laser-induced theroelectric voltages experiment has coincidence with the resistivity anisotropy, which is interpreted by the Mott band theory for Seebeck coefficient approximation.
Journal: Journal of Crystal Growth - Volume 322, Issue 1, 1 May 2011, Pages 41–44