Ultrafast transient liquid assisted growth of high current density superconducting films.

ABSTRACT: The achievement of high growth rates in YBa₂Cu₃O₇ epitaxial high-temperature superconducting films has become strategic to enable high-throughput manufacturing of long length coated conductors for energy and large magnet applications. We report on a transient liquid assisted growth process capable of achieving ultrafast growth rates (100 nm s^-1) and high critical current densities (5 MA cm^-2 at 77 K). This is based on the kinetic preference of Ba-Cu-O to form transient liquids prior to crystalline thermodynamic equilibrium phases, and as such is a non-equilibrium approach. The transient liquid-assisted growth process is combined with chemical solution deposition, proposing a scalable method for superconducting tapes manufacturing. Addi

SUBMITTER: Soler L 

PROVIDER: S-EPMC6969047 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature