{"id":"https://openalex.org/A5050758355","orcid":null,"observed_orcids":[],"display_name":"Sonja Stappert","raw_author_names":["S. Stappert","Sonja Stappert","Stappert, Sonja"],"full_name":"Sonja Stappert","works_count":21,"cited_by_count":1028,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":12,"i10_index":12},"ids":{"openalex":"https://openalex.org/A5050758355","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210106708","ror":"https://ror.org/018w9fc90","display_name":"Sachtleben (Germany)","country_code":"DE","type":"company","lineage":["https://openalex.org/I4210106708"]},"years":[2005]},{"institution":{"id":"https://openalex.org/I62318514","ror":"https://ror.org/04mz5ra38","display_name":"University of Duisburg-Essen","country_code":"DE","type":"education","lineage":["https://openalex.org/I62318514"]},"years":[2006,2004,2003,2002,2001]}],"last_known_institutions":[{"id":"https://openalex.org/I62318514","ror":"https://ror.org/04mz5ra38","display_name":"University of Duisburg-Essen","country_code":"DE","type":"education","lineage":["https://openalex.org/I62318514"]}],"topics":[{"id":"https://openalex.org/T13104","display_name":"Chemical and Physical Properties of Materials","count":14,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11782","display_name":"Magnetic Properties of Alloys","count":8,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12202","display_name":"nanoparticles nucleation surface interactions","count":5,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12405","display_name":"Characterization and Applications of Magnetic Nanoparticles","count":5,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10192","display_name":"Catalytic Processes in Materials Science","count":4,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13104","display_name":"Chemical and Physical Properties of Materials","value":0.0001005,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12202","display_name":"nanoparticles nucleation surface interactions","value":5.73e-05,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12405","display_name":"Characterization and Applications of Magnetic Nanoparticles","value":5.1e-05,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11782","display_name":"Magnetic Properties of Alloys","value":3.89e-05,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10857","display_name":"Advanced Electron Microscopy Techniques and Applications","value":1.6e-05,"subfield":{"id":"https://openalex.org/subfields/1315","display_name":"Structural Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.9121004343032837},{"id":"155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","score":0.8380451202392578},{"id":"42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","score":0.6099643707275391},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.5526993274688721},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.36480000615119934}],"counts_by_year":[{"year":2000,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":9,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":51},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":60},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":39},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":42},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":32},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":25},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":22},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":17}],"display_name_alternatives":["S. Stappert","Sonja Stappert","Stappert, Sonja"],"block_key":"s stappert","works_api_url":"https://api.openalex.org/works?filter=author.id:A5050758355","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}