# Andreev reflection at point contacts with heavy-fermion UBe13 ?

Source: [Andreev reflection at point contacts with heavy-fermion UBe13 ?](<https://www.sota2.com/research/paper/68fa24fe2c2a3760193ab693>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T10:03:10.876Z

Authors: K. Gloos

Published: 2000-07-01T10:35:02.000Z

## Abstract

We comment on a recent Letter by Waelti et al. (PRL 84, 5616 (2000)) on 'Spectroscopic evidence for unconventional superconductivity in UBe13'. We show - by using the basic Wexler formula - that it is unlikely to observe Andreev reflection at point contacts between UBe13 and a normal metal. The large superconducting anomalies usually found for those contacts are mainly due to the resistive Maxwell resistance vanishing below Tc of UBe13.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0007006>)

[PDF](<https://arxiv.org/pdf/cond-mat/0007006.pdf>)