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Role of the oxygen on the initial growth mechanism and microstructure of YBa2Cu3O7- thin films

G. STANCIU1,* , N. D. SCARISOREANU2, R. BIRJEGA2, M. DINESCU2, E. ANDRONESCU1

Affiliation

  1. University Politehnica of Bucharest, Faculty of Applied Chemistry and Material Science, Bucharest, Romania
  2. National Institute for Lasers, Plasma and Radiation Physics, Magurele, Romania

Abstract

Superconducting c-axis oriented YBa2Cu3O7- thin films were grown on (001) SrTiO3 single crystals by PLD and RF-assisted PLD in order to investigate the role of the atomic oxygen concentration used during growth on the microstructural and electrical transport properties of the films. The results show a better oxygen distribution in the out-of-plane direction and better superconducting properties for the films grown by means of RF-assisted PLD, with a better morphology and microstructure for the PLD grown films..

Keywords

YBa2Cu3O7- thin films, PLD, RF-assisted PLD, oxygen distribution, XRD, AFM, transport properties.

Citation

G. STANCIU, N. D. SCARISOREANU, R. BIRJEGA, M. DINESCU, E. ANDRONESCU, Role of the oxygen on the initial growth mechanism and microstructure of YBa2Cu3O7- thin films, Optoelectronics and Advanced Materials - Rapid Communications, 6, 11-12, November-December 2012, pp.1192-1196 (2012).

Submitted at: Sept. 27, 2012

Accepted at: Oct. 30, 2012