dc.contributor.authorMitra, Sreemanta
dc.contributor.authorOkawa, K.
dc.contributor.authorKunniniyil Sudheesh, S.
dc.contributor.authorSasagawa, T.
dc.contributor.authorZhu, Jian-Xin
dc.contributor.authorChia, Elbert Ee Min
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_US
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_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent5 p.en_US
dc.relation.ispartofseriesPhysical Review Ben_US
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: [http://dx.doi.org/10.1103/PhysRevB.95.134519]. 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_US
dc.subjectStrong-coupling correctionsen_US
dc.titleProbing the superconducting gap symmetry of α − PdBi 2 : A penetration depth studyen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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