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(14) Halder, A.; Nell, D.; Sihi, A.; Bajaj, A.; Sanvito, S.;","work_id":"4091ede6-8fc7-4f09-a547-d9b94f4b7323","year":2025},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"M.; Archer, T.; Rungger, I.; Sanvito, S.Phys","work_id":"8245daae-9293-4fb5-94ed-0baa771a2d57","year":2012}],"snapshot_sha256":"b870d4bbf2f22dc505a28ca223f4742837251ff2bab61989fbdea82938d15b74"},"source":{"id":"2605.12711","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-14T19:55:36.620014Z","id":"a4503a3b-4c13-4758-aaf1-2dccabd82b51","model_set":{"reader":"grok-4.3"},"one_line_summary":"Altermagnetic tunnel junctions based on KV2Se2O exhibit low-bias negative differential resistance and sign-inverting ultra-high TMR due to the material's quasi-2D Fermi surface.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Altermagnetic tunnel junctions with KV2Se2O produce large low-bias negative differential resistance and sign-inverting TMR.","strongest_claim":"We predict that a large low-bias negative differential resistance can be observed in an altermagnetic tunnel junction... supports a large tunneling magnetoresistance with sign inversion at 0.13 V.","weakest_assumption":"The quasi-2D Fermi surface of KV2Se2O plays a crucial role in realizing the negative differential resistance, and the DFT+NEGF model accurately captures the bias-dependent transport without significant errors from functional choice or interface details."}},"verdict_id":"a4503a3b-4c13-4758-aaf1-2dccabd82b51"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5531fc9769e5fa579c04392e1f60ea252c5412511692ace8d78f659080407b1e","target":"record","created_at":"2026-05-18T03:09:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d612db7fc69f9410555dabafc19e8920a7dbde825436157addb4d3c9c3721280","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-12T20:19:35Z","title_canon_sha256":"8717e2bad5eb559450b15f2e9f15becc466e6fecf469d8edab15a432b9cdc8cd"},"schema_version":"1.0","source":{"id":"2605.12711","kind":"arxiv","version":1}},"canonical_sha256":"171614e3656b02b1cfc7f46017e3526daccbfd935c777df8c41e0e7c4a43188e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"171614e3656b02b1cfc7f46017e3526daccbfd935c777df8c41e0e7c4a43188e","first_computed_at":"2026-05-18T03:09:49.539617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:09:49.539617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g57/biUdMjPWMOyqLlFCPm1vRKLjKAqC/OqP82yD2VGT3+wGse63cXxAsSAYbx+MxEitNCrqVGEXOaCOZ4jMAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:09:49.540538Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.12711","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5531fc9769e5fa579c04392e1f60ea252c5412511692ace8d78f659080407b1e","sha256:d227b12b8432a9fea519767ee19f6cae46fef50ff457a789a27e79c2206d25f0"],"state_sha256":"8f4854ce70877d49278f60d1372ccf411b99117e927df87b15c3942feb92fb0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XBVeAv3msYmQv8NvgJ/2b6iCt3iIlY//Z2r2AgVafA81YYWYOH/XQE/JaD8tokiWBiDPsyHKENF0jJX/LV0oBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T00:26:06.623745Z","bundle_sha256":"43147d9c8e811e3b9ebe903bc5074bdca7b723171ada0aae5561dda96a268dcd"}}