{"paper":{"title":"Ferromagnetism or slow paramagnetic relaxation in Fe-doped Li$_3$N?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"A. Jesche, H. A. H\\\"oppe, H.-H. Klauss, I. M. Pietsch, M. Fix, P. C. Canfield, R. S. Manna, S. A. Br\\\"auninger, S. G. Jantz","submitted_at":"2017-12-21T14:18:53Z","abstract_excerpt":"We report on isothermal magnetization, M\\\"ossbauer spectroscopy, and magnetostriction as well as temperature-dependent alternating-current (ac) susceptibility, specific heat, and thermal expansion of single crystalline and polycrstalline Li$_2$(Li$_{1-x}$Fe$_x$)N with $x = 0$ and $x \\approx 0.30$. Magnetic hysteresis emerges at temperatures below $T \\approx 50\\,$K with coercivity fields of up to $\\mu_0H = 11.6\\,$T at $T = 2\\,$K and magnetic anisotropy energies of $310\\,$K ($27\\,$meV). The ac susceptibility is strongly frequency dependent ($f\\,=\\,10$--$10,000\\,$Hz) and reveals an effective ener"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07953","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"}