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Observation of pair currents in superconductor-semiconductor contacts
Abstract
An excess low-voltage conductance is observed in Nb-InGaAs contacts at low temperatures and interpreted as being due to a pair current across the superconductor-semiconductor interface. This is the first observation of a pair current, a nonequilibrium manifestation of the proximity effect, in junctions having one electrode which is not a superconductor. A model is presented which accounts for the observed behavior. In addition to the pair current, it is demonstrated that these junctions exhibit excess conductance due to Andreev scattering.
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Citations
Cited by
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Altland, A., & Zirnbauer, M. R. (1997) · Physical Review B · doi:10.1103/physrevb.55.1142 · Cited by 2,402
Das, A., Ronen, Y., Most, Y., Oreg, Y., Heiblum, M., & Shtrikman, H. (2012) · Nature Physics · doi:10.1038/nphys2479 · Cited by 2,112
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Kashiwaya, S., & Tanaka, Y. (2000) · Reports on Progress in Physics · doi:10.1088/0034-4885/63/10/202 · Cited by 989
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Sasaki, S., Kriener, M., Segawa, K., Yada, K., Tanaka, Y., Sato, M., & Ando, Y. (2011) · Physical Review Letters · doi:10.1103/physrevlett.107.217001 · Cited by 676
Metadata
- Authors
- Kastalsky, A., Kleinsasser, A. W., Greene, L. H., Bhat, R., Milliken, F. P., & Harbison, J. P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1991-11-18
- Volume
- 67
- Issue
- 21
- Pages
- 3026-3029
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W1971481567
- Cited by
- 313
- References
- 0
- FWCI
- 7.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Observation of pair currents in superconductor-semiconductor contacts. https://app.cochat.ai/papers/10.1103/physrevlett.67.3026
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- Kastalsky, A., Kleinsasser, A. W., Greene, L. H., Bhat, R., Milliken, F. P., & Harbison, J. P. (1991). Observation of pair currents in superconductor-semiconductor contacts. Physical Review Letters. https://doi.org/10.1103/physrevlett.67.3026
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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.
