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Öğe In-situ single chamber arc sputtering process for YCd0.3Ba2Cu3O7-? superconducting thin films(Kluwer Academic/Plenum Publ, 1999) Yakinci, ME; Balci, Y; Aksan, MA; Aydogdu, Y; Ates, HSuperconducting YCd0.3Ba2Cu3O7-delta thin films have been deposited in-situ onto single crystal MgO substrates using a DC arc-sputtering process. The depositions were carried out in a single chamber deposition system equipped with two target holders. The films deposited at the optimum condition exhibited strong (001) orientation with a high peak: intensity. The best electrical properties were achieved to be 90 K for T-e, 81K for T-zero and the transport critical current density J(c) = 675 A/cm(2) at 77K and 2.3x10(3) A/cm(2) at 4.2 K for the sample deposited at the optimum conditions.Öğe X-ray diffraction studies, electrical and optical properties of some metal complexes of the ligand including 1-amino-3-(N-benzylamino) propane(Elsevier Science Sa, 1999) Aydogdu, Y; Yakuphanoglu, F; Aydogdu, A; Sekerci, M; Balci, Y; Aksoy, IMetal complexes containing Cu+2, Ni+2 and Cd+2 of the ligand including 1-amino-3-(N-benzylamino propane) named M2 - [CdL1](Cl-2), M3 - [CuL2](NO3)(2), M4 - [CuL2](Cl-2) and M5 - [NiL2](Cl-2) were investigated structurally by X-ray diffraction (XRD), electrically by two probe and optically by optical methods. From the XRD data, the unit cells of the samples were found as M2, monoclinic, and M3, M4 and M5, triclinic. Hot probe and thermoelectric power measurements indicated that the complexes M2, M3, M4 and M5 have n-type of electrical conductivity and optical band gaps of the complexes are 1.66, 1.31, 1.25 and 1.29 eV, respectively. (C) 1999 Elsevier Science S,A. All rights reserved.