Preparation of (11n) oriented Bi2Sr2CaCu2O8+x thin films without c-axis twin structure by the metal-organic decomposition method using vicinal SrTiO3 (110) substrates

Abstract

ARTICLES YOU MAY BE INTERESTED INProbing the internal energy structure of a serially coupled double quantum dot system with Rashba spin-orbit coupling through finite-frequency shot noise AIP Advances 8, 015001 (2018) We have prepared (11n) oriented Bi 2 Sr 2 CaCu 2 O 8+x (Bi2212) thin films by metalorganic decomposition method. The vicinal (110) substrate of SrTiO 3 (STO) inclined toward the [110] direction was used for suppressing "c-twinning". In the sample prepared in the O 2 atmosphere, only the (11n) peak appeared in the θ-2θ X-ray diffraction pattern. When the miscut angle of the substrate was ϕ = 10 • , it was shown by the scanning electron microscope images and the (008) pole figures that the c-axis was inclined by about 38 • and the c-twinning was substantially suppressed. ρ ab and ρ c of this sample were calculated by the corrected van der Pauw method and component calculation of the two-dimensional resistivity tensor. The superconducting transition temperatures were T c = 81 K. The temperature dependence of ρ ab was a typical metallic behavior reflecting the characteristics of the ab-plane of Bi2212. On the other hand, that of ρ c did not become a typical semiconductor behavior in the c-axis direction of Bi2212, but it showed a metallic behavior. The anisotropic parameter γ was about 10.

Magneto-Conductive and Magnetic Properties in La_1-<i>x</i>Sr<i>_x</i>MnO₃Thin Films on a-SiO₂ Substrates Produced by Metal Organic Decomposition Method

“…It has been reported that LSMO shows the metal-insulator transition at x = 0.16 in low temperature regions due to the double exchange interaction [6,7]. In our past research reports, we have presented the study on magneto-transport properties and hole self-doping due to excess oxygen addition in polycrystalline LMO [8][9][10][11]. Without external cationic doping, LMO has very rich phases due to the oxygen nonstoichiometry.…”

Effect of suspension parameters towards the fabrication of BSCCO films by electrophoretic deposition

“…Several methods including sputtering [7][8][9], pulsed laser deposition [10], molecular beam epitaxy [11,12], metal organic deposition method [13,14] and sol-gel method [15,16] have been applied to the preparation of BSCCO films to grow c-axis oriented films with pure composition and high critical temperature.…”

Magneto-Transport Properties in LaMnO₃ Thin Films on a-SiO₂ Substrates Produced by Metal Organic Decomposition Method

“…When La ions in LMO are substituted by A atoms, Mn 3+ ions are partially changed into Mn 4+ ions, and accordingly Mn 3+ and Mn 4+ ions coexist in LAMO (Mn 4+ ions have the configuration). This means that the hole doping is carried out chemical solution deposition and has several advantages, such as low costs and easy way to produce thin films, large area and homogenous thin film production, no requirement of the vacuum environment for deposition, and so on [8][9]. In this paper, we have studied the magneto-transport properties in LMO thin films on a-SiO2 substrates produced by the MOD method.…”