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1 results

  • Observation of the Early Stages of B-Axis Oriented Prba2Cu3O7-x Thin Film Growth by AFM

  • Gun Yong Sung, Jeong Dae Suh, Sang-Don Jung
  • Journal:
    MRS Online Proceedings Library Archive / Volume 388 / 1995
    Published online by Cambridge University Press:
    21 February 2011, 433
    Print publication:
    1995

  • The initial stages of the growth of b-axis oriented PrBa2Cu3O7-x (PBCO) films on LaSrGaO4 (100) substrates were investigated by atomic force microscopy to follow the growth of the thin films. Series of films with thickness ranging between 0.34 nm and 100 nm were prepared under identical pulsed laser deposition conditions. No sprial-topped or flat-topped islands were observed and the scale of the surface roughness was lower than that of the c-axis oriented growth mode. the 300 nm-thick in-plane aligned a-axis oriented YBCO films have the root mean square (RMS) surface roughness of 2 nm. It is considered that the b-axis oriented PBCO films on LaSrGaO4 (100) substrates were nucleated and grown by layer-by-layer like growth mode.