{"paper":{"title":"Temperature-dependent and anisotropic optical response of layered Pr$_{0.5}$Ca$_{1.5}$MnO$_{4}$ probed by spectroscopic ellipsometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. A. Nugroho, A. Rusydi, E. Thoeng, F. Wendt, I.P. Handayani, I. Santoso, M. A. Majidi, M. R\\\"ubhausen, P. H. M. van Loosdrecht, P.K. Gogoi, S. H. Wang, T.C. Asmara","submitted_at":"2015-01-13T12:32:49Z","abstract_excerpt":"We study the temperature dependence as well as anisotropy of optical conductivity ($\\sigma_1$) in the pseudocubic single crystal Pr$_{0.5}$Ca$_{1.5}$MnO$_{4}$ using spectrocopic ellipsometry. Three transition temperatures are observed and can be linked to charge-orbital ($T_{\\rm CO/OO}$ $\\sim$ 320 K), two-dimensional-antiferromagnetic (2D-AFM) ($\\sim$ 200 K), and three-dimensional AFM ($T_{\\rm N} \\sim$ 125 K) orderings. Below $T_{\\rm CO/OO}$, $\\sigma_1$ shows a charge ordering peak ($\\sim$0.8 eV) with a significant blue shift as the temperature decreases. Calculations based on a model that inc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02979","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"}