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In this metallic phase six Co sites are resolved in the NMR spectra, with distinct quadrupole frequencies $\\nu _{Q}$, magnetic shifts $K_{ZZ}$ and nuclear spin lattice relaxation rates $% 1/T_{1}$. Contrary to the $x=1/2$ or $x=2/3$ phases the 3D stacking of the Na planes is not perfect for $x=0.77$ but this does not influence markedly the electronic properties. We evidence that the magnetic and charge properti"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1406.7470","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-06-29T08:04:38Z","cross_cats_sorted":[],"title_canon_sha256":"693603e00af8c2db27ea47add57d8a81c89efee88074562574b7a0b94cd636ef","abstract_canon_sha256":"e14644b9658b7e8553e9007fac9ddcc326e9084afa154732fe31f3ac916e409d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:03.427332Z","signature_b64":"sDvsuG/Krac1WHVV61o6PHVW+ifnSjOmzyfHnu9IPbSN7xNeh1bB8zqTeF+XQ6ZpANLIWUfG4QckqighI9+/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"943b52f7e849f46b43c165552e12af65fe5636140efe23dfcf0740659540c2aa","last_reissued_at":"2026-05-18T02:41:03.426846Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:03.426846Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evolution of Co charge disproportionation with Na order in Na$_{x}$CoO$_{2}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A.V.Dooglav, H.Alloul, I.R.Mukhamedshin, S.A.Krivenko","submitted_at":"2014-06-29T08:04:38Z","abstract_excerpt":"$^{59}$Co NMR experiments have been performed on single crystals of the layered cobaltate Na$_{x}$CoO$_{2}$ with x=0.77 which is an antiferromagnet with N\\'eel temperature $T_{N}=22$~K. 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