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dc.contributor.authorMitra, Sreemantaen
dc.contributor.authorOkawa, K.en
dc.contributor.authorKunniniyil Sudheesh, S.en
dc.contributor.authorSasagawa, T.en
dc.contributor.authorZhu, Jian-Xinen
dc.contributor.authorChia, Elbert Ee Minen
dc.identifier.citationMitra, S., Okawa, K., Kunniniyil Sudheesh, S., Sasagawa, T., Zhu, J.-X., & Chia, E. E. M. (2017). Probing the superconducting gap symmetry of α − PdBi 2 : A penetration depth study. Physical Review B, 95(13),134519-.en
dc.description.abstractWe report measurements of the in-plane London penetration depth λ in single crystals of the α−PdBi2 superconductor—the α-phase counterpart of the putative topological superconductor β−PdBi2, down to 0.35 K using a high-resolution tunnel-diode-based technique. Both λ and superfluid density ρs exhibit an exponential behavior for T≤ 0.35Tc, with Δ(0)/kBTc ∼ 2.0, ΔC/γTc ∼ 2.0, and λ(0) ∼ 140 nm, showing that α−PdBi2 is a moderately coupling, fully gapped superconductor. The values of Δ(0) and ΔC/γTc are consistent with each other via strong-coupling corrections.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent5 p.en
dc.relation.ispartofseriesPhysical Review Ben
dc.rights© 2017 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectStrong-coupling correctionsen
dc.titleProbing the superconducting gap symmetry of α − PdBi 2 : A penetration depth studyen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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