Abstract
We show that the quality of Nd1.85Ce0.15CuO 4 films grown by pulsed laser deposition can be enhanced by using a non-stoichiometric target with extra copper added to suppress the formation of a parasitic (Nd, Ce)2O3phase. The properties of these films are less dependent on the exact annealing procedure after deposition as compared to films grown from a stoichiometric target. Film growth can be followed by a 1 bar oxygen annealing, after an initial vacuum annealing, while retaining the superconducting properties and quality. This enables the integration of electron-doped cuprates with their hole-doped counterparts on a single chip, to create, for example, superconducting pn-junctions.
Original language | English |
---|---|
Article number | 044017 |
Journal | Superconductor science and technology |
Volume | 27 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
Keywords
- cuprate superconductors
- electron doped
- material synthesis
- thin films
- transport properties