{"paper":{"title":"Critical current density, vortex dynamics, and phase diagram of FeSe single crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Ryo Kobayashi, Shigeru Kasahara, Sunseng Pyon, Takasada Shibauchi, Tatsuya Watashige, Tsuyoshi Tamegai, Yue Sun, Yuji Matsuda","submitted_at":"2015-10-20T04:52:08Z","abstract_excerpt":"We present a comprehensive study of the vortex pinning and dynamics in a high-quality FeSe single crystal, which is free from doping introduced inhomogeneities and charged quasi-particle-scattering because of its innate superconductivity. Critical current density, $J_c$, is found to be almost isotropic, and reaches a value $\\sim$ 3 $\\times$ 10$^4$ A/cm$^2$ at 2 K (self-field) for both $H$ $\\|$ $c$ and $ab$. The normalized magnetic relaxation rate $S$ (= $\\mid$dln$M$/dln$t$$\\mid$) shows a temperature insensitive plateau behavior in the intermediate temperature range with a relatively high creep"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05753","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"}