Local transport measurements in laser patterned BSCCO-Ag tapes

TL;DR

This paper introduces a laser patterning technique for BSCCO-Ag tapes that allows direct measurement of local transport properties, effectively distinguishing between inter- and intra-filament contributions, aiding material evaluation for applications.

Contribution

The study presents a novel laser patterning method enabling direct local transport measurements in superconducting tapes, surpassing traditional indirect magnetic measurement techniques.

Findings

Laser patterning enables direct local transport measurements.

The method can distinguish inter- and intra-filament contributions.

Potential application in sub-millimeter superconducting devices.

Abstract

The determination of inter- and intra-filament transport characteristics in superconducting composites such as BSCCO-Ag tapes is of great importance for material evaluation towards applications. Most attempts to separate the two contributions have relied on indirect methods based on magnetic measurements such as SQUID or magneto-optic imaging techniques. Here we show that laser patterning of superconducting BSCCO-Ag tapes constitutes a simple approach to measure local transport properties in a direct way, even able to separate inter- and intra-filament contributions to the overall transport behavior of the sample. Our technique is potentially useful for sub-millimeter devices based on superconducting tapes.