{"paper":{"title":"Incommensurate Magnetism in FeAs Strips: Neutron Scattering from CaFe$_4$As$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Collin Broholm, Emilia Morosan, Gabriel Kotliar, Jose A. Rodriguez-Rivera, Kyoo Kim, Liang L. Zhao, Mark A. Green, Pawel Zajdel, William Ratcliff, Yusuke Nambu","submitted_at":"2010-12-18T10:56:00Z","abstract_excerpt":"Magnetism in the orthorhombic metal CaFe$_4$As$_3$ was examined through neutron diffraction for powder and single crystalline samples. Incommensurate (${\\bm q}_{\\rm m}\\approx (0.37-0.39)\\times{\\bm b}^{\\ast}$) and predominantly longitudinally ($\\parallel b$) modulated order develops through a 2nd order phase transition at $T_{\\rm N}=89.63(6)$ K with a 3D Heisenberg-like critical exponent $\\beta=0.365(6)$. A 1st order transition at $T_2=25.6(9)$ K is associated with the development of a transverse component, locking ${\\bm q}_{\\rm m}$ to $0.375(2){\\bm b}^{\\ast}$, and increasing the moments from 2"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4082","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"}