{"paper":{"title":"Hole redistribution in Sr\\_(14-x)Ca\\_xCu\\_24O\\_41 (x = 0, 12) spin ladder compounds: ^63Cu and ^17O NMR study under pressure","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Yakubovsky, D. J\\'erome (LPS), P. Auban-Senzier (LPS), P. Wzietek (LPS), Y. Piskunov (LPS)","submitted_at":"2005-05-23T15:23:03Z","abstract_excerpt":"We report the results of a ^63Cu and ^17O NMR study of the nuclear quadrupole interaction tensor, ^(17,63)nu\\_{Q,alpha}, in the hole doped spin ladder system Sr\\_(14-x)Ca\\_xCu\\_24O\\_41 (x = 0 and 12) performed under ambient and high pressures. NMR data show that the hole density in the Cu\\_2O\\_3 ladder layer grows with temperature, Ca content and an applied pressure. We have derived the hole occupation of Cu 3d and O 2p orbitals at the different ion sites in the Cu\\_2O\\_3 ladder as a function of the temperature, Ca substitution and pressure. We also suggest that the most important role of high"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0505561","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"}