Skip to main content

Growth mode selection and transport properties in Nd1Ba2Cu3O7 superconducting films deposited by high oxygen pressure diode sputtering

The full text article is temporarily unavailable.

We apologise for the inconvenience. Please try again later.


In this paper we report on the growth mode selection in epitaxial high critical temperature Nd1+xBa2-xCu3O7 (NdBCO) films. The samples have been deposited on (100) SrTiO3 single crystals by high oxygen pressure diode sputtering using a Nd0.97Ba2.03Cu3O7 polycrystalline target. The effect of different deposition parameters on the morphology, superconductivity and structure has been investigated by atomic force microscopy, resistivity and inductive measurements, and x-ray diffraction respectively. While the deposition temperature and oxygen pressure mainly affect the critical temperature of the samples, the surface morphology is strongly dependent on the target–substrate distance. Films realized in identical deposition conditions, i.e. oxygen pressure, rate and substrate temperature, exhibit different growth modes associated with a 10% change of the target–substrate distance. The typical surface roughness of 110 nm thick NdBCO films deposited on SrTiO3 substrates is 1.0 nm (rms) on 5 × 5 µm2 areas. Surprisingly, the critical current density and its temperature dependence are found to be independent of the surface morphology of the films investigated, and are well described by strong pinning provided by large linear defects.

Document Type: Research Article


Publication date: June 1, 2005

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more