{"paper":{"title":"Kondo transport in an anisotropic two-dimensional electron gas with quadratic momentum-dependent spin splitting","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Quadratic spin splitting in an anisotropic 2DEG suppresses the Kondo temperature by ~37% at a critical coupling strength, marking the onset of Kondo collapse.","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"M. R. Parymuda","submitted_at":"2026-04-29T15:00:17Z","abstract_excerpt":"We investigate the transport properties of an anisotropic two-dimensional electron gas with a quadratic spin texture, described by a low-energy effective $ k\\cdot p$ model, in the presence of $S=1/2$ Kondo impurities. We develop a Green's function framework that captures the interplay between the spin texture and the Kondo scattering for calculating transport properties in such systems. Using this framework, we evaluate the longitudinal resistivity corrections $\\Delta\\rho^{xx}/\\rho^{xx}_0$ and $\\Delta\\rho^{yy}/\\rho^{yy}_0$ to third order in the $s$-$d$ exchange coupling and analyze their tempe"},"claims":{"count":3,"items":[{"kind":"strongest_claim","text":"We identify a critical coupling α_cr marking the onset of a Kondo collapse, at which T_K is reduced by approximately 37% relative to that of the conventional two-dimensional electron gas.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The low-energy effective k·p model with quadratic spin texture remains valid across the range of α studied, and third-order perturbation theory in the s-d exchange coupling suffices to capture the temperature dependence of the resistivity corrections and T_K.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Quadratic spin splitting in an anisotropic 2DEG suppresses the Kondo temperature by ~37% at a critical coupling strength, marking the onset of Kondo collapse.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"}],"snapshot_sha256":"91a2dd68e7223fee4c591fe6a346f184db900e098f4eebe410d1d90d3ab2c772"},"source":{"id":"2604.26767","kind":"arxiv","version":2},"verdict":{"id":"646077e3-eeb2-400f-ac06-d61a70e34e38","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-07T12:10:23.158662Z","strongest_claim":"We identify a critical coupling α_cr marking the onset of a Kondo collapse, at which T_K is reduced by approximately 37% relative to that of the conventional two-dimensional electron gas.","one_line_summary":"Quadratic spin splitting in an anisotropic 2DEG suppresses the Kondo temperature by ~37% at a critical coupling strength, marking the onset of Kondo collapse.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The low-energy effective k·p model with quadratic spin texture remains valid across the range of α studied, and third-order perturbation theory in the s-d exchange coupling suffices to capture the temperature dependence of the resistivity corrections and T_K.","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.26767/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-20T23:42:29.264928Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"7dd7e00f9dcdbc6f93e89e801e20deeec0e9f7b9e0e360891c5c90c99c5a1465"},"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"}