{"paper":{"title":"Interface engineering of the anomalous Hall effect in Ni-based heterostructures","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Interfacial inversion-symmetry breaking induces Rashba spin-orbit interaction that governs the anomalous Hall conductivity in Ni heterostructures.","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Devajyoti Mukherjee, Kalyan sarkar, Kousik Das, Kusampal Yadav, Mainak Ghosh, Sayantika Bhowal","submitted_at":"2026-05-16T11:10:40Z","abstract_excerpt":"Using a combined experimental and first-principles theoretical approach, we demonstrate interface engineering of the anomalous Hall effect in Ni-based epitaxial thin-film heterostructures. Ferromagnetic Ni thin films are grown on (001)-oriented single-crystal LaAlO$_3$, SrTiO$_3$, and MgO substrates, which impose different biaxial tensile strains of 0.3%, 0.6%, and 0.8%, respectively. Our room-temperature Hall transport measurements reveal a pronounced substrate-dependent modulation of the anomalous Hall conductivity. Interestingly, our calculations show that strain alone cannot account for th"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Interfacial inversion-symmetry breaking, which induces Rashba spin-orbit interaction, is the key mechanism governing the anomalous Hall conductivity across different interfaces.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The first-principles calculations correctly capture the interfacial electronic structure and correctly identify Rashba spin-orbit coupling as the dominant contribution over other possible mechanisms such as extrinsic scattering.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Interface-induced Rashba spin-orbit interaction, rather than strain, governs anomalous Hall conductivity in Ni heterostructures and enables continuous electric-field tuning.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Interfacial inversion-symmetry breaking induces Rashba spin-orbit interaction that governs the anomalous Hall conductivity in Ni heterostructures.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"65c4e4567397d4d3b75f3cbc6ee9c1abecb4d91a0c5c1633b9421298c04128ef"},"source":{"id":"2605.16936","kind":"arxiv","version":1},"verdict":{"id":"8e7ce083-31b4-40f5-9277-32065240a7ce","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T20:42:30.979493Z","strongest_claim":"Interfacial inversion-symmetry breaking, which induces Rashba spin-orbit interaction, is the key mechanism governing the anomalous Hall conductivity across different interfaces.","one_line_summary":"Interface-induced Rashba spin-orbit interaction, rather than strain, governs anomalous Hall conductivity in Ni heterostructures and enables continuous electric-field tuning.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The first-principles calculations correctly capture the interfacial electronic structure and correctly identify Rashba spin-orbit coupling as the dominant contribution over other possible mechanisms such as extrinsic scattering.","pith_extraction_headline":"Interfacial inversion-symmetry breaking induces Rashba spin-orbit interaction that governs the anomalous Hall conductivity in Ni heterostructures."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.16936/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_title_agreement","ran_at":"2026-05-19T21:01:19.135538Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T20:51:06.531703Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"cited_work_retraction","ran_at":"2026-05-19T20:21:57.860276Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T18:41:56.250072Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T18:33:26.332164Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"245314e6b237c09fde165fedaaaf387855cae53cf74a93b6fd51cff26be5649d"},"references":{"count":94,"sample":[{"doi":"","year":null,"title":"(see section 5 of the SM [47] forρxx data [62–65]). Fig. 2d shows the temperature dependence of the maximum value of AHC (σA xy) for Ni/MgO, Ni/LAO, and Ni/STO heterostructures. We note that the condu","work_id":"b936cb9d-cd52-446b-a499-9a0b808b777f","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2000,"title":"Effects of Biaxial Strain on Bulk Ni As listed in Table I, depending on the choice of sub- strate, Ni thin films undergo different biaxial tensile strains. To understand if the observed transport prop","work_id":"6bba6b84-a5df-41cf-a9d9-2c2127361e6a","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2025,"title":"We begin our discussion with Ni/STO as an exam- ple material","work_id":"cb06985f-3e57-4035-b865-3f01748ae4ba","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2017,"title":"F. D. M. Haldane, Rev. Mod. Phys.89, 040502 (2017)","work_id":"53916e14-ebfd-49ed-a4af-fe13fac48566","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2016,"title":"A. Bansil, H. Lin, and T. Das, Rev. Mod. Phys.88, 021004 (2016)","work_id":"e82f94c3-8e12-4387-8705-5a603116d511","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":94,"snapshot_sha256":"ceca70868725b2225814da79840cac71e6ee1a1fc15293ff09b9677d59fc0f0c","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"9709bb717eea12634487c879af81a2fce6f4eed9ec19c8e3508b5131adaddc1b"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}