{"doi":"10.1021/jacs.2c04432","title":"Magnetic Interactions in Substitutional Core-Doped Graphene Nanoribbons","abstract":"The design of a spin imbalance within the crystallographic unit cell of bottom-up engineered 1D graphene nanoribbons (GNRs) gives rise to nonzero magnetic moments within each cell. Here, we demonstrate the bottom-up assembly and spectroscopic characterization of a one-dimensional Kondo spin chain formed by a chevron-type GNR (cGNR) physisorbed on Au(111). Substitutional nitrogen core doping introduces a pair of low-lying occupied states per monomer within the semiconducting gap of cGNRs. Charging resulting from the interaction with the gold substrate quenches one electronic state for each monomer, leaving behind a 1D chain of radical cations commensurate with the unit cell of the ribbon. Scanning tunneling microscopy (STM) and spectroscopy (STS) reveal the signature of a Kondo resonance emerging from the interaction of S = 1/2 spin centers in each monomer core with itinerant electrons in the Au substrate. STM tip lift-off experiments locally reduce the effective screening of the unpaired radical cation being lifted, revealing a robust exchange coupling between neighboring spin centers. First-principles DFT-LSDA calculations support the presence of magnetic moments in the core of this GNR when it is placed on Au.","journal":"Journal of the American Chemical Society","year":2022,"id":238700,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":53,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9596,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2022-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":863144,"name":"Peter H. Jacobse","orcid":"0000-0002-0777-6050","position":1,"is_corresponding":false},{"id":863145,"name":"Jingwei Jiang","orcid":"0000-0002-0949-4401","position":2,"is_corresponding":false},{"id":863146,"name":"Ziyi Wang","orcid":"0000-0003-1049-5038","position":3,"is_corresponding":false},{"id":863147,"name":"Ryan D. McCurdy","orcid":"0000-0001-7319-4836","position":4,"is_corresponding":false},{"id":622967,"name":"Steven G. Louie","orcid":"0000-0003-0622-0170","position":5,"is_corresponding":false},{"id":755840,"name":"Michael F. Crommie","orcid":"0000-0001-8246-3444","position":6,"is_corresponding":false},{"id":459077,"name":"Felix R. Fischer","orcid":"0000-0003-4723-3111","position":7,"is_corresponding":false},{"id":863143,"name":"Ethan Chi Ho Wen","orcid":"0000-0002-8656-5285","position":0,"is_corresponding":true}],"reference_count":46,"raw_metadata":null,"created_at":"2026-07-19T00:22:31.741535Z","pmid":"35867847","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}