Laser deposition of thin superconducting films from a nanocrystalline YBa2Cu3O7-delta target



: Huhtinen H, Paturi P, Lahderanta E, Laiho R

Publisher: IOP PUBLISHING LTD

: 1999

Superconductor Science and Technology

SUPERCONDUCTOR SCIENCE & TECHNOLOGY

: SUPERCOND SCI TECH

: 12

: 2

: 81

: 86

: 6

: 0953-2048

DOI: https://doi.org/10.1088/0953-2048/12/2/005


A target prepared from YBa2Cu3O7-delta nanopowder is used for pulsed laser deposition of thin films on SrTiO3 substrates. Investigations by atomic force microscopy show that in this way it is possible to prepare smooth films which are free from droplets. In optimized growth conditions the critical current density J(c) approximate to 8 x 10(6) A cm(2) in zero held at 77 K, superconducting transition temperature T-c approximate to 90 K and transition width of Delta T-c = 2 K are obtained.



Last updated on 2025-13-10 at 13:44