AI Article Synopsis
- Uranium ditelluride (UTe) is considered a top candidate for a -wave superconductor in bulk form, prompting detailed spectroscopic research.
- Conductance measurements were taken through point-contact junctions at low temperatures (down to 250 mK) and high magnetic fields (up to 18 T), utilizing the Blonder-Tinkham-Klapwijk model for analysis.
- The findings indicate a dominant -wave gap function with an amplitude of 0.26 ± 0.06 meV, supporting the idea of spin-triplet pairing in UTe's superconducting state.
Article Abstract
Uranium ditelluride (UTe) is the strongest contender to date for a -wave superconductor in bulk form. Here we perform a spectroscopic study of the ambient pressure superconducting phase of UTe, measuring conductance through point-contact junctions formed by metallic contacts on different crystalline facets down to 250 mK and up to 18 T. Fitting a range of qualitatively varying spectra with a Blonder-Tinkham-Klapwijk (BTK) model for -wave pairing, we can extract gap amplitude and interface barrier strength for each junction. We find good agreement with the data for a dominant -wave gap function with amplitude 0.26 ± 0.06 meV. Our work provides spectroscopic evidence for a gap structure consistent with the proposed spin-triplet pairing in the superconducting state of UTe.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11567886 | PMC |
| http://dx.doi.org/10.1038/s41535-024-00700-z | DOI Listing |
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