{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KNGSZXK2OG7TQFMFMA2Z5OWX6Y","short_pith_number":"pith:KNGSZXK2","canonical_record":{"source":{"id":"1304.6992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-25T19:48:19Z","cross_cats_sorted":[],"title_canon_sha256":"d96fb720b60c62960f7512646808575f98f0dd7ce54ac45e1ac6dc29779016d1","abstract_canon_sha256":"bf27a71627646e3bdfaad1da8af6ed85d98a7cb7dd32b154ad988002137ad781"},"schema_version":"1.0"},"canonical_sha256":"534d2cdd5a71bf38158560359ebad7f628cc850bcd1ea50d37bf872cc05a2f32","source":{"kind":"arxiv","id":"1304.6992","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6992","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6992v1","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6992","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"pith_short_12","alias_value":"KNGSZXK2OG7T","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KNGSZXK2OG7TQFMF","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KNGSZXK2","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KNGSZXK2OG7TQFMFMA2Z5OWX6Y","target":"record","payload":{"canonical_record":{"source":{"id":"1304.6992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-25T19:48:19Z","cross_cats_sorted":[],"title_canon_sha256":"d96fb720b60c62960f7512646808575f98f0dd7ce54ac45e1ac6dc29779016d1","abstract_canon_sha256":"bf27a71627646e3bdfaad1da8af6ed85d98a7cb7dd32b154ad988002137ad781"},"schema_version":"1.0"},"canonical_sha256":"534d2cdd5a71bf38158560359ebad7f628cc850bcd1ea50d37bf872cc05a2f32","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:27:10.608743Z","signature_b64":"71M9S+EY4yVheQ+yluREHBv7Y1TNzCkD8KHaCWBZpiehzRoObck13l8BBYDTtP+ONpbnNy9Cbsw/h+3VE0krCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"534d2cdd5a71bf38158560359ebad7f628cc850bcd1ea50d37bf872cc05a2f32","last_reissued_at":"2026-05-18T03:27:10.608030Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:27:10.608030Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.6992","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:27:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"reSplAzop8mvpXfa/MBvshBoFTI+DH0q5f5Scdc5ZcF0iJbwqbF69HuD+JybGFtJmXEHAROLFDNhS5XFqxvtCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:07:29.292753Z"},"content_sha256":"3ecdf0e77d2ed3c6da869951b957277bfe5afb0b17f98c5b43c51c064e235cb9","schema_version":"1.0","event_id":"sha256:3ecdf0e77d2ed3c6da869951b957277bfe5afb0b17f98c5b43c51c064e235cb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KNGSZXK2OG7TQFMFMA2Z5OWX6Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin blocker made of semiconductor double quantum well using the Rashba effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Sawada, H. Mukai, M. Eto, M. Ogawa, S. Souma, S. Yokota, T. Koga, Y. Sekine","submitted_at":"2013-04-25T19:48:19Z","abstract_excerpt":"We propose a lateral spin-blockade device that uses an InGaAs/InAlAs double quantum well (DQW), where the values of the Rashba spin-orbit parameter $\\alpha_{\\rm R}$ are opposite in sign but equal in magnitude between the constituent quantum wells (QW). By tuning the channel length of DQW and the magnitude of the externally applied in-plane magnetic field, one can block the transmission of one spin (e.g., spin-down) component, leading to a spin-polarized current. Such a spin-blocking effect, brought about by wave vector matching of the spin-split Fermi surfaces between the two QWs, paves the wa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6992","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:27:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dvnGwSLaE/dSuiKZdmAosJFAz5Tfpco4wnu2xeNvXD2bQgHVKoENCNT21M+/1d2PsnIC1G9sOiopToJKEI9oDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:07:29.293459Z"},"content_sha256":"e1615b105985edf35aa8f4fe069e574efe2eb16131ae660a3ba5af5db774afcb","schema_version":"1.0","event_id":"sha256:e1615b105985edf35aa8f4fe069e574efe2eb16131ae660a3ba5af5db774afcb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/bundle.json","state_url":"https://pith.science/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T20:07:29Z","links":{"resolver":"https://pith.science/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y","bundle":"https://pith.science/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/bundle.json","state":"https://pith.science/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KNGSZXK2OG7TQFMFMA2Z5OWX6Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KNGSZXK2OG7TQFMFMA2Z5OWX6Y","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"bf27a71627646e3bdfaad1da8af6ed85d98a7cb7dd32b154ad988002137ad781","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-25T19:48:19Z","title_canon_sha256":"d96fb720b60c62960f7512646808575f98f0dd7ce54ac45e1ac6dc29779016d1"},"schema_version":"1.0","source":{"id":"1304.6992","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6992","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6992v1","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6992","created_at":"2026-05-18T03:27:10Z"},{"alias_kind":"pith_short_12","alias_value":"KNGSZXK2OG7T","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KNGSZXK2OG7TQFMF","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KNGSZXK2","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:e1615b105985edf35aa8f4fe069e574efe2eb16131ae660a3ba5af5db774afcb","target":"graph","created_at":"2026-05-18T03:27:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We propose a lateral spin-blockade device that uses an InGaAs/InAlAs double quantum well (DQW), where the values of the Rashba spin-orbit parameter $\\alpha_{\\rm R}$ are opposite in sign but equal in magnitude between the constituent quantum wells (QW). By tuning the channel length of DQW and the magnitude of the externally applied in-plane magnetic field, one can block the transmission of one spin (e.g., spin-down) component, leading to a spin-polarized current. Such a spin-blocking effect, brought about by wave vector matching of the spin-split Fermi surfaces between the two QWs, paves the wa","authors_text":"A. Sawada, H. Mukai, M. Eto, M. Ogawa, S. Souma, S. Yokota, T. Koga, Y. Sekine","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-25T19:48:19Z","title":"Spin blocker made of semiconductor double quantum well using the Rashba effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6992","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3ecdf0e77d2ed3c6da869951b957277bfe5afb0b17f98c5b43c51c064e235cb9","target":"record","created_at":"2026-05-18T03:27:10Z","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":"bf27a71627646e3bdfaad1da8af6ed85d98a7cb7dd32b154ad988002137ad781","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-25T19:48:19Z","title_canon_sha256":"d96fb720b60c62960f7512646808575f98f0dd7ce54ac45e1ac6dc29779016d1"},"schema_version":"1.0","source":{"id":"1304.6992","kind":"arxiv","version":1}},"canonical_sha256":"534d2cdd5a71bf38158560359ebad7f628cc850bcd1ea50d37bf872cc05a2f32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"534d2cdd5a71bf38158560359ebad7f628cc850bcd1ea50d37bf872cc05a2f32","first_computed_at":"2026-05-18T03:27:10.608030Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:27:10.608030Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"71M9S+EY4yVheQ+yluREHBv7Y1TNzCkD8KHaCWBZpiehzRoObck13l8BBYDTtP+ONpbnNy9Cbsw/h+3VE0krCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:27:10.608743Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.6992","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ecdf0e77d2ed3c6da869951b957277bfe5afb0b17f98c5b43c51c064e235cb9","sha256:e1615b105985edf35aa8f4fe069e574efe2eb16131ae660a3ba5af5db774afcb"],"state_sha256":"dedde3389f289fdd27fc2b423cdcfd8737125a7f10327c4078e10041a29a3509"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8m+IrjPkroUuYcU2jrWbciDU3/BIKs5U9mu4hPnzjt66CcvkYnzc/hcs0f/hcMffyfffwCvgyg4a+aeNSeUzCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:07:29.297079Z","bundle_sha256":"ff8423e13694efc2626dd9050265fc467fe5e7ab08012b3444279fa8222449d8"}}