{"paper":{"title":"Interface controlled spin filtering and nonreciprocal transport in Altermagnet/Ising superconductor junctions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Altermagnet/Ising superconductor junctions with spin-active interfaces produce spin filtering up to 86 percent efficiency and nonreciprocal transport.","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.supr-con","authors_text":"Arindam Boruah, Prasanta Kumar Saikia, Saumen Acharjee","submitted_at":"2026-05-13T10:29:56Z","abstract_excerpt":"We investigate theoretically spin-resolved transport, spin filtering, and nonreciprocal effects in an Altermagnet/Ising superconductor (AM/ISC) junction with a spin-active interface. Using a modified Bogoliubov-de Gennes framework within the scattering formalism, we demonstrate that the interplay among intrinsic spin-orbit coupling (ISOC), anisotropic AM spin texture and spin-dependent interfacial scattering gives rise to strongly anisotropic charge and spin conductance. In the weak spin-mixing regime, transport remains predominantly helicity conserving and exhibits pronounced angular dependen"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"the spin polarization and spin-filter efficiency exhibit nonmonotonic dependence on system parameters, reaching values up to ∼86%, with characteristic angular modulation determined by the AM spin texture. Strong spin mixing produces asymmetric conductance patterns indicating nonreciprocal transport.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The modified Bogoliubov-de Gennes scattering formalism with chosen spin-mixing regimes and interface magnetization accurately captures all relevant physics without additional disorder, finite-temperature, or multi-band effects beyond the stated single-band to double-band regimes.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Altermagnet/Ising superconductor junctions with spin-active interfaces produce anisotropic conductance, spin filtering up to 86%, and nonreciprocal transport controlled by interface spin mixing and altermagnet spin texture.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Altermagnet/Ising superconductor junctions with spin-active interfaces produce spin filtering up to 86 percent efficiency and nonreciprocal transport.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"d098324b3da91c2067a4beb979660279108ea8198dd3acb784e2f7e2a6088a5a"},"source":{"id":"2605.13317","kind":"arxiv","version":1},"verdict":{"id":"3c2bf8a6-38aa-48b1-adaa-c8aa49b5b125","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T18:35:00.904477Z","strongest_claim":"the spin polarization and spin-filter efficiency exhibit nonmonotonic dependence on system parameters, reaching values up to ∼86%, with characteristic angular modulation determined by the AM spin texture. Strong spin mixing produces asymmetric conductance patterns indicating nonreciprocal transport.","one_line_summary":"Altermagnet/Ising superconductor junctions with spin-active interfaces produce anisotropic conductance, spin filtering up to 86%, and nonreciprocal transport controlled by interface spin mixing and altermagnet spin texture.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The modified Bogoliubov-de Gennes scattering formalism with chosen spin-mixing regimes and interface magnetization accurately captures all relevant physics without additional disorder, finite-temperature, or multi-band effects beyond the stated single-band to double-band regimes.","pith_extraction_headline":"Altermagnet/Ising superconductor junctions with spin-active interfaces produce spin filtering up to 86 percent efficiency and nonreciprocal transport."},"references":{"count":63,"sample":[{"doi":"","year":null,"title":"The corresponding energy band structure of the AM is depicted in Fig","work_id":"661552fc-67e7-42ea-a18c-22494deb6033","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2004,"title":"I. ˇZuti´c, J. Fabian, and S. D. Sarma, Spintronics: Fundamentals and applications, Rev. Mod. Phys.76, 323 (2004)","work_id":"d8821210-5fdd-4249-a176-ba8a8014cbf0","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"A. I. Buzdin, Proximity effects in superconductor-ferromagnet heterostructures, Rev. Mod. Phys.77, 935 (2005)","work_id":"be528233-92dd-4b2f-8540-5a7215053e01","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"F. S. Bergeret, A. F. V olkov, and K. B. Efetov, Odd triplet superconductivity and related phenomena in superconductor- ferromagnet structures, Rev. Mod. Phys.77, 1321 (2005)","work_id":"cb2c1f68-d771-475b-bc5a-14fcd66b5401","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2000,"title":"S. S. Saxena, P. Agarwal, K. Ahilan, F. M. Grosche, R. K. W. Haselwimmer, M. J. Steiner, E. Pugh, I. R. Walker, S. R. Julian, P. Monthouxet al., Superconductivity on the bor- der of itinerant-electron","work_id":"8a18d99e-bf63-45a7-9810-c8f7d553a61e","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":63,"snapshot_sha256":"ec0e2e3868c94af26985e10ca6309c708ff1beba1de0ff04510d5adeefd35a1c","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"}