{"paper":{"title":"Quantum critical point and spin fluctuations in the lower-mantle ferropericlase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph","physics.geo-ph"],"primary_cat":"cond-mat.str-el","authors_text":"A. A. Mironovich, A. G. Gavriliuk, I. S. Lyubutin, J. F. Lin, P. Chow, P. G. Naumov, S. G. Ovchinnikov, S. Sinogeikin, V.V. Struzhkin, Y. Xiao","submitted_at":"2011-10-18T12:37:57Z","abstract_excerpt":"Ferropericlase, (Mg,Fe)O is one of the most abundant minerals of the Earth's lower mantle. The high-spin (HS) to low-spin (LS) transition in the Fe2+ ions can dramatically alter the physical and chemical properties of (Mg,Fe)O in the deep mantle, thereby changing our understanding of the Earth's deep interior. To establish a fundamental understanding of the ground electronic state of iron, the electronic and magnetic states of Fe2+ in (Mg0.75,Fe0.25)O have been investigated by transmission (TMS) and synchrotron (NFS) M\\\"ossbauer spectroscopy at high pressures and low temperatures (down to 5 K)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.3956","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"}