Work

Reversible Resistivity Control of Ba2YCu3O7-δ Thin Films by Laser Annealing

Year: 1988

Type: article

Abstract: Laser annealing of superconducting Ba2YCu3O7-δ (BYCO) thin films has been investigated by using a Nd:YAG cw laser. By laser irradiation at power densities higher than 1.4×105 W/cm2, superconducting polycrystalline films became amorphous and showed semiconductor-like temperature dependence on resistivity. The amorphization is apparently caused by a rapid quenching of molten BYCO after laser irradiation. The superconductivity of the film could be recovered by annealing the laser-irradiated film in a furnace. With this mask-free laser irradiation process, patterning of superconducting films can be achieved.

Source: Japanese Journal of Applied Physics

DOI: 10.1143/jjap.27.l652

Authors: Hideomi Koinuma, Yasuhiko Takemura, Takuya Hishimoto, Kou Takeuchi, Kazuo Fueki

Institutions: Tokyo Institute of Technology, Semiconductor Energy Laboratory (Japan), The University of Tokyo

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2014779264

FWCI: 1.373

Cites: 7

Cited by: 15

Related to: 10