{"paper":{"title":"Reentrant phases in electron-doped $\\text{EuFe}_2\\text{As}_2$: spin glass and superconductivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Baumgartner, A. V. Pronin, D. Neubauer, G. H. Cao, M. Dressel, S. Zapf, W. H. Jiao","submitted_at":"2017-02-14T07:52:32Z","abstract_excerpt":"We report evidence for a reentrant spin glass phase in electron-doped $\\text{EuFe}_2\\text{As}_2$ single crystals and first traces of the superconductivity re-entrance in optics. In the close-to-optimal doped $\\text{Eu}(\\text{Fe}_{0.91}\\text{Ir}_{0.09})_2\\text{As}_2$ and $\\text{Eu}(\\text{Fe}_{0.93}\\text{Rh}_{0.07})_2\\text{As}_2$ samples two magnetic transitions are observed below the superconducting critical temperature $T_c \\approx 21$~K: the canted $A$-type antiferromagnetic order of the $\\text{Eu}^{2+}$ ions sets in around $17\\,\\text{K}$; the spin glass behavior occurs another $2\\,\\text{K}$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.04104","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"}