{"paper":{"title":"Magnetic relaxation and correlating effective magnetic moment with particle size distribution in maghemite nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Emily C. Despeaux, Kelly L. Pisane, Mohindar S. Seehra","submitted_at":"2015-01-26T17:44:23Z","abstract_excerpt":"The role of particle size distribution inherently present in magnetic nanoparticles (NPs) is examined in considerable detail in relation to the measured magnetic properties of oleic acid-coated maghemite ({\\gamma}-Fe$_2$O$_3$) NPs. Transmission electron microscopy (TEM) of the sol-gel synthesized $\\gamma$-$Fe$$_2$$O$$_3$ NPs showed a log-normal distribution of sizes with average diameter $<D>$= 7.04 nm and standard deviation $\\sigma$= 0.78 nm. Magnetization, $M$, vs. temperature (2 K to 350 K) of the NPs was measured in an applied magnetic field $H$ up to 90 kOe along with the temperature depe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06842","kind":"arxiv","version":3},"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"}