Shiroka, T., Fittipaldi, R., Cuoco, M., De Renzi, R., Maeno, Y., Lycett, R.J., Ramos, Silvia, Forgan, E.M., Baines, C., Rost, A., and others. (2012) ?sR studies of superconductivity in eutectically grown mixed ruthenates. Physical Review B - condensed matter and materials physics, 85 (13). p. 134527. ISSN 1098-0121. (doi:10.1103/PhysRevB.85.134527) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:46983)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://dx.doi.org/10.1103/PhysRevB.85.134527 |
Abstract
The low-temperature magnetic behavior of the double-layered ruthenate Sr 3Ru 2O 7, as grown from a eutectic Sr 2RuO 4-Sr 3Ru 2O 7 system, was investigated via zero- and transverse-field muon-spin rotation. The gradual increase of the muon relaxation rate observed below 2.5 K, even in the absence of applied magnetic fields, indicates the occurrence of a spontaneous breaking of time-reversal symmetry. The onset of the latter at a temperature above 1.5 K, the T c of the single phase Sr 2RuO 4, provides evidence about an unconventional superconducting state in the eutectic phase, which most likely takes place at the interface between the Sr 2RuO 4 and Sr 3Ru 2O 7 domains, or even inside the Sr 3Ru 2O 7 phase. We show that the superconducting state manifests a two-component behavior in the transverse-field response with change-over at about T=2.5 K and T=1.5 K. The comparison with zero-field μSR data in the Ru-Sr 2RuO 4 eutectic system rules out the possibility of spurious effects due to embedded Ru islands.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1103/PhysRevB.85.134527 |
| Uncontrolled keywords: | Physics of Quantum Materials |
| Subjects: | Q Science > QC Physics > QC176 Solid state physics |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | Silvia Ramos Perez |
| Date Deposited: | 28 Apr 2015 10:40 UTC |
| Last Modified: | 16 Nov 2021 10:19 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/46983 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Ramos, Silvia.
| Creator's ORCID: |
 https://orcid.org/0000-0003-2725-7706
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|---|---|
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