Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 425

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Observation of Josephson pair tunneling between a high-Tccuprate (YBa2Cu3O7−δ) and a conventional superconductor (Pb)

Sun, A. G., Gajewski, D. A., Maple, M. B., Dynes, R. C.·1994·Physical Review Letters

Abstract

Josephson tunneling currents have been observed on low leakage Pb/insulator/${\mathrm{Y}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Pr}}_{\mathit{x}}$${\mathrm{Ba}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ tunnel junctions. The junctions are planar with tunneling into the c axis. We have studied these Josephson currents on junctions with resistances varying by more than 2 orders of magnitude. From the magnetic field modulation of the Josephson current, the low temperature value and the temperature dependence from 1.3 to 4.2 K of the c-axis penetration depth were measured. This observation of Josephson coupling along the c axis between a conventional superconductor (Pb) and a cuprate raises questions about the proposed d-wave nature of the superconducting order parameter in the cuprates.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1103/physrevlett.72.2267

Cites

12 of 12 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 12 references

Metadata

Authors
Sun, A. G., Gajewski, D. A., Maple, M. B., & Dynes, R. C.
Venue
Physical Review Letters
Published
1994-04-04
Volume
72
Issue
14
Pages
2267-2270
ISSN
0031-9007 (ISSN-L)
OpenAlex
W2078877274
Cited by
425
References
12
FWCI
53.07
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Observation of Josephson pair tunneling between a high-Tccuprate (YBa2Cu3O7−δ) and a conventional superconductor (Pb). https://app.cochat.ai/papers/10.1103/physrevlett.72.2267
The paper
Sun, A. G., Gajewski, D. A., Maple, M. B., & Dynes, R. C. (1994). Observation of Josephson pair tunneling between a high-Tccuprate (YBa2Cu3O7−δ) and a conventional superconductor (Pb). Physical Review Letters. https://doi.org/10.1103/physrevlett.72.2267

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.