Fabrication of graded helical square tower-like Mn sculptured thin films and investigation of their electrical properties: comparison with perturbation theory
الموضوعات : Journal of Theoretical and Applied PhysicsMahsa Fakharpour 1 , Hadi Savaloni 2
1 - Department of Physics, Science and Research Branch, Islamic Azad University
2 - Department of Physics, University of Tehran
الکلمات المفتاحية: Mn sculptured thin films, Anisotropy, Electrical property, Perturbation theory, Shadowing effect, Helical,
ملخص المقالة :
AbstractMn sculptured thin films were fabricated in form of graded helical square tower-like terraced sculptured Mn thin films (GHSTTS) using oblique angle deposition together with rotation of substrate about its surface normal with fixed rotation angle (90°) and a shadowing block which was fixed at the centre of the substrate holder. The anisotropy of the samples was examined by resistivity measurements at two orthogonal angles. Direct relationship is obtained between resistivity and the anisotropy of the produced samples which showed that both of these parameters increase with decreasing distance from the edge of the shadowing block. Simulation work using the perturbation theory produced results consistent with the experimental observations.
