Inter- and intragrain transport measurements in YBa2Cu3O7−x deformation textured coated conductors
Year: 2001
Type: article
Abstract: Using photolithography, links for transport measurement have been placed across individual Ni grain boundaries and within individual Ni grains on several coated conductor samples. The typical Ni grain size is ∼50 μm, while the YBa2Cu3O7−x grains are submicron in size. It is found that the intragrain Jc(0 T,77 K) can exceed 5 MA/cm2, thus showing that present coated conductor Jc values are not significantly limited by the intragrain Jc. Inter- and intragrain Jc values ranged from one-half to more than four times full-width measured values, demonstrating that current percolates through the conductor. The misorientation angle dependence of Jc fits well with previous studies of [001] tilt SrTiO3 bicrystals.
Source: Applied Physics Letters
DOI: 10.1063/1.1425952
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1661286433