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Singlet-triplet mixing in the order parameter of the noncentrosymmetric superconductor Ru7B3
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Cameron, A. S., Yerin, Y. S., Tymoshenko, Y. V., Portnichenko, P. Y., Sukhanov, A. S., Hatnean, M. Ciomaga, Paul, D. McK., Balakrishnan, Geetha, Cubitt, R., Heinemann, A. and Inosov, D. S. (2022) Singlet-triplet mixing in the order parameter of the noncentrosymmetric superconductor Ru7B3. Physical Review B, 105 (9). 094519. doi:10.1103/PhysRevB.105.094519 ISSN 2469-9950.
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Cameron Singlet-triplet mixing in the order parameter of the noncentrosymmetric superconductor Ru7B3 PhysRevB.105.094519.pdf - Published Version - Requires a PDF viewer. Download (937Kb) | Preview |
Official URL: https://doi.org/10.1103/PhysRevB.105.094519
Abstract
One of the key effects which is predicted to arise in superconductors without a center of inversion is the mixing of singlet and triplet order parameters, which are no longer good quantum numbers on their own due to parity.We have probed the gap structure in the noncentrosymmetric superconductor Ru7B3, through small-angle neutron diffraction from the vortex lattice, in order to search for the proposed mixed order parameter. We find that the measured temperature dependence of the vortex-lattice form factor is well characterized by a model constructed to describe the effects of broken inversion symmetry on the superconducting state, indicating the presence of a mixed singlet-triplet gap and confirming the theoretical predictions.
| Item Type: | Journal Article | |||||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Superconductors, Quantum theory, Electrons | |||||||||||||||||||||||||||
| Journal or Publication Title: | Physical Review B | |||||||||||||||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||||||||||||||
| ISSN: | 2469-9950 | |||||||||||||||||||||||||||
| Official Date: | 29 March 2022 | |||||||||||||||||||||||||||
| Dates: |
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| Volume: | 105 | |||||||||||||||||||||||||||
| Number: | 9 | |||||||||||||||||||||||||||
| Article Number: | 094519 | |||||||||||||||||||||||||||
| DOI: | 10.1103/PhysRevB.105.094519 | |||||||||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||||||||
| Copyright Holders: | American Physical Society | |||||||||||||||||||||||||||
| Date of first compliant deposit: | 6 April 2022 | |||||||||||||||||||||||||||
| Date of first compliant Open Access: | 7 April 2022 | |||||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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