{"paper":{"title":"Probing the superconducting gap symmetry of $\\alpha$-PdBi$_{2}$: A penetration depth study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Elbert E. M. Chia, Jian-Xin Zhu, K. Okawa, S. Kunniniyil Sudheesh, S. Mitra, T. Sasagawa","submitted_at":"2017-05-05T02:54:45Z","abstract_excerpt":"We report measurements of the in-plane London penetration depth $\\lambda$ in single crystals of the $\\alpha$-PdBi$_{2}$ superconductor --- the $\\alpha$-phase counterpart of the putative topological superconductor $\\beta$-PdBi$_{2}$, down to 0.35~K using a high-resolution tunnel-diode-based technique. Both $\\lambda$ and superfluid density $\\rho_{s}$ exhibit an exponential behavior for $T\\leq$ 0.35$T_{c}$, with $\\Delta(0)/k_{B}T_{c}\\sim$2.0, $\\Delta C/\\gamma T_{c}$$\\sim$2.0 and $\\lambda(0)$$\\sim$140~nm, showing that $\\alpha$-PdBi$_{2}$ is a moderately-coupling, fully-gapped superconductor. The v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02070","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}