Progress of PLD and IBAD processes for YBCO wire in the SRL-Nagoya Coated Conductor Centre -: new method for a coated conductor using a self-epitaxial PLD-CeO2 buffer

The Nagoya Coated Conductor Centre (NCCC) in SRL has installed new reel-to-reel MAD and PLD systems for the fabrication of long, coated conductors. A 53 in long ion-beam assisted deposition (IBAD) substrate has been successfully produced. The degree of bi-axial texturing was improved by the newly found buffer deposition technique of pulsed laser deposition- (PLD)-CeO2, which we call the self-epitaxial method. The PLD-CeO2 layer brought about a high degree of in-plane texturing up to 2.6degrees in a few minutes on an IBAD seed layer. The resultant YBCO coated 2 conductor on the CeO2 layer showed high J(c) values of up to 4.4 MA cm(-2). The reel-to-reel PLD equipment with a high power laser of 200 W is now being applied to long-conductor fabrication and CeO2 buffer layer deposition with a high deposition rate.