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        <identifier>oai:figshare.com:article/33830350</identifier>
        <datestamp>2026-09-16T07:23:14Z</datestamp>
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          <dc:title>Data for Quantum muon diffusion and the preservation of time reversal symmetry in the superconducting state of type-I rhenium</dc:title>
          <dc:creator>David Jonas (16480431)</dc:creator>
          <dc:creator>Pabitra K. Biswas (22045271)</dc:creator>
          <dc:creator>Adrian D. Hillier (19489088)</dc:creator>
          <dc:creator>Daniel Mayoh (24869029)</dc:creator>
          <dc:creator>Martin R. Lees (1896280)</dc:creator>
          <dc:subject>Rhenium</dc:subject>
          <dc:subject>Superconductors</dc:subject>
          <dc:subject>Muon spin rotation</dc:subject>
          <dc:subject>Muons</dc:subject>
          <dc:subject>Time reversal</dc:subject>
          <dc:subject>Migrated from ePrints</dc:subject>
          <dc:description>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.&lt;br&gt;&lt;br&gt;For each dataset, the first row gives the variables, and the second row gives the units.  Figure1.txt: Temperature x-column, resistivity y-column, y-error column.  Figure1_Inset.txt: Effective applied magnetic field x-column, x-error column, magnetization y-column, y-error column. Columns 1-4 are for 1.6 K, 5-8 are for 1.5 K, 9-12 are for 1.42 K.  Figure2.txt: Temperature x-column, Heat capacity divided by temperature y-column, y-error column. Columns 1-3 are for zero-field, 4-6 are for 25 mT.  Figure3.txt: Time x-column, asymmetry y-column, y-error column. Columns 2-3 are for 92 mK, 4-5 are for 4 K, 6-7 are for 20 K, 8-9 are for 0.5 K in a longitudinal field of 30 mT.  Figure4.txt: Temperature x-column, hopping rate y-column, y-error column.  FigureS1.txt: Background asymmetry x-column, x-erro column, initial asymmetry y-column, y-error column.  FigureS1_Inset.txt: Temperature x-column, initial asymmetry y-column, y-error column.  FigureS2.txt: Relaxation rate x-column, x-error column, hopping rate y-column, y-error column.  FigureS3a.txt: Temperature x-column, hopping rate y-column, y-error column. Columns 2-3 are when all parameters were free in the fitting, 4-5 are when the background asymmetry was fixed, 6-7 are when the background asymmetry and initial asymmetry were both fixed. (N.B. The other data in Figure S3a not included are the same as the data in Figure 4.)  FigureS3b.txt: Temperature x-column, relaxation rate y-column, y-error column. Columns 2-3 are when all parameters were free in the fitting, 4-5 are when the background asymmetry was fixed, 6-7 are when the background asymmetry and initial asymmetry were both fixed.</dc:description>
          <dc:date>2022-01-27T00:00:00Z</dc:date>
          <dc:type>Dataset</dc:type>
          <dc:type>Dataset</dc:type>
          <dc:identifier>10.82444/warw.33830350.v1</dc:identifier>
          <dc:relation>https://figshare.com/articles/dataset/Data_for_Quantum_muon_diffusion_and_the_preservation_of_time_reversal_symmetry_in_the_superconducting_state_of_type-I_rhenium/33830350</dc:relation>
          <dc:rights>CC BY 4.0</dc:rights>
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