DOAJ Open Access 2024

Probing p-wave superconductivity in UTe2 via point-contact junctions

Hyeok Yoon Yun Suk Eo Jihun Park Jarryd A. Horn Ryan G. Dorman +5 lainnya

Abstrak

Abstract Uranium ditelluride (UTe2) is the strongest contender to date for a p-wave superconductor in bulk form. Here we perform a spectroscopic study of the ambient pressure superconducting phase of UTe2, 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 p-wave pairing, we can extract gap amplitude and interface barrier strength for each junction. We find good agreement with the data for a dominant p y -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 UTe2.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Atomic physics. Constitution and properties of matter

Penulis (10)

Hyeok Yoon

Yun Suk Eo

Jihun Park

Jarryd A. Horn

Ryan G. Dorman

Shanta R. Saha

Ian M. Hayes

Ichiro Takeuchi

Philip M. R. Brydon

Johnpierre Paglione

Format Sitasi

APA MLA BibTeX

Yoon, H., Eo, Y.S., Park, J., Horn, J.A., Dorman, R.G., Saha, S.R. et al. (2024). Probing p-wave superconductivity in UTe2 via point-contact junctions. https://doi.org/10.1038/s41535-024-00700-z

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Informasi Jurnal

Tahun Terbit: 2024
Sumber Database: DOAJ
DOI: 10.1038/s41535-024-00700-z
Akses: Open Access ✓