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Quantum muon diffusion and the preservation of time-reversal symmetry in the superconducting state of type-I rhenium
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Jonas, D. G. C., Biswas, P. K., Hillier, A. D., Mayoh, Daniel and Lees, Martin R. (2022) Quantum muon diffusion and the preservation of time-reversal symmetry in the superconducting state of type-I rhenium. Physical Review B (Condensed Matter and Materials Physics), 105 (2). L020503. doi:10.1103/PhysRevB.105.L020503 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.105.L020503
Abstract
Elemental rhenium exhibiting type-II superconductivity has been previously reported to break time-reversal symmetry in the superconducting state. We have investigated an arc-melted sample of rhenium exhibiting type-I superconductivity. Low-temperature zero-field muon-spin relaxation measurements indicate that time-reversal symmetry is preserved in the superconducting state. Muon diffusion is observed, which is due to quantum mechanical tunneling between interstitial sites. The normal state behavior is characterized by the conduction electrons screening the muons and thermal broadening, and is typical for a metal. Energy asymmetries between muon trapping sites and the superconducting energy gap also characterize the superconducting state behavior.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QC Physics | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
Library of Congress Subject Headings (LCSH): | Rhenium , Superconductors, Muon spin rotation, Muons, Time reversal | ||||||||||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||||||||||
Publisher: | American Physical Society | ||||||||||||
ISSN: | 1098-0121 | ||||||||||||
Official Date: | 1 January 2022 | ||||||||||||
Dates: |
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Volume: | 105 | ||||||||||||
Number: | 2 | ||||||||||||
Article Number: | L020503 | ||||||||||||
DOI: | 10.1103/PhysRevB.105.L020503 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
Copyright Holders: | ©2022 American Physical Society | ||||||||||||
Date of first compliant deposit: | 21 January 2022 | ||||||||||||
Date of first compliant Open Access: | 24 January 2022 | ||||||||||||
RIOXX Funder/Project Grant: |
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