Reduction of critical temperatures in pure and thoriated UBe13 by columnar defects

TL;DR

This study examines how columnar defects affect the superconducting transition temperatures in pure and thoriated UBe13, revealing that defects cause transition broadening and slight temperature drops, with implications for understanding superconductivity in these materials.

Contribution

It provides new insights into the effects of columnar defects on the superconducting transitions of UBe13, especially comparing pure and thoriated samples.

Findings

Columnar defects cause all superconducting transitions to widen.

Transitions drop slightly in temperature due to defects.

Pure UBe13 transition resembles the lower transition in 3% thoriated samples.

Abstract

We investigate the influence of columnar defects on the superconducting transition temperatures of pure and thoriated UBe13. The defects cause all the transitions to widen and to drop slightly in temperature. Quantitatively, the single UBe13 transition resembles the lower transition in a sample with 3% thorium more closely than the upper thoriated transition.