{"paper":{"title":"Specific heat of K071Na0.29Fe2As2 at very low temperatures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Fleischmann, A. Reifenberger, C. Enss, M. Abdel-Hafiez, M. Hempel, P. Vogt, R. Klingeler, S. Aswartham, S.-L. Drechsler, S. Wurmehl, V. Grinenko","submitted_at":"2014-05-11T11:26:18Z","abstract_excerpt":"A commercially available calorimeter has been used to investigate the specific heat of a high-quality \\kn\\ single crystal. The addenda heat capacity of the calorimeter is determined in the temperature range $0.02 \\, \\mathrm{K} \\leq T \\leq 0.54 \\, \\mathrm{K}$. The data of the \\kn\\ crystal imply the presence of a large $T^2$ contribution to the specific heat which gives evidence of $d$-wave order parameter symmetry in the superconducting state. To improve the measurements, a novel design for a calorimeter with a paramagnetic temperature sensor is presented. It promises a temperature resolution o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.2521","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"}