{"paper":{"title":"Crystal structures, magnetic and superconducting properties of the RuSr_2NdCu_2O_x and RuSr_2GdCu_2O_y compounds","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Vecchione, C. Tedesco, D. Zola, M. Gombos, S. Pace","submitted_at":"2001-10-22T18:58:21Z","abstract_excerpt":"We report the magnetization and the susceptibility measurements of the RuSr_2GdCu_2O_y and RuSr_2NdCu_2O_x perovskite materials. We find that RuSr_2GdCu_2O_y compound exhibits a magnetic transition at Tn=135 K followed by a superconducting one with an onset Tc=35 K. Samples of RuSr_2NdCu_2O_x material have shown neither superconductivity nor magnetic transition. XRD measurements show that in RuSr_2NdCu_2O_x the Nd ions tend to substitute to Sr ions in very high percentages. The relevance of this phenomenon on the absence of superconductivity in RuSr_2NdCu_2O_x is discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0110482","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"}