{"paper":{"title":"Theory of hopping magnetoresistance induced by Zeeman splitting","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat","authors_text":"K. A. Matveev, L. I. Glazman, Penny Clarke","submitted_at":"1995-01-08T23:33:14Z","abstract_excerpt":"We present a study of hopping conductivity for a system of sites which can be occupied by more than one electron. At a moderate on-site Coulomb repulsion, the coexistence of sites with occupation numbers 0, 1, and 2 results in an exponential dependence of the Mott conductivity upon Zeeman splitting $\\mu_BH$. We show that the conductivity behaves as $\\ln\\sigma= (T/T_0)^{1/4}F(x)$, where $F$ is a universal scaling function of $x=\\mu_BH/T(T_0/T)^{1/4}$. We find $F(x)$ analytically at weak fields, $x \\ll 1$, using a perturbative approach. Above some threshold $x_{\\rm th}$, the function $F(x)$ atta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9501024","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"}