{"id":"https://openalex.org/A5064637167","orcid":null,"observed_orcids":[],"display_name":"A. Kerfah","raw_author_names":["A Kerfah","A. Kerfah","A. Kerfah A","Ahmed Kerfah"],"full_name":"Ahmed Kerfah","works_count":11,"cited_by_count":71,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5064637167","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I157169809","ror":"https://ror.org/02kb89c09","display_name":"University of Sciences and Technology Houari Boumediene","country_code":"DZ","type":"education","lineage":["https://openalex.org/I157169809"]},"years":[2011,2006,2001,2000]},{"institution":{"id":"https://openalex.org/I864159182","ror":"https://ror.org/0104rcc94","display_name":"University of Silesia in Katowice","country_code":"PL","type":"education","lineage":["https://openalex.org/I864159182"]},"years":[2005]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10107","display_name":"Ferroelectric and Piezoelectric Materials","count":11,"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/T11878","display_name":"Solid-state spectroscopy and crystallography","count":7,"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/T10886","display_name":"Multiferroics and related materials","count":6,"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/T10078","display_name":"Advanced Photocatalysis Techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13249","display_name":"Dielectric properties of ceramics","count":3,"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/T10886","display_name":"Multiferroics and related materials","value":3.63e-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/T10107","display_name":"Ferroelectric and Piezoelectric Materials","value":3.47e-05,"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/T12646","display_name":"Inorganic Fluorides and Related Compounds","value":2.66e-05,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic 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/T13249","display_name":"Dielectric properties of ceramics","value":2.52e-05,"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/T11878","display_name":"Solid-state spectroscopy and crystallography","value":2.49e-05,"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"}}],"x_concepts":[{"id":"79090758","wikidata":"https://www.wikidata.org/wiki/Q1045739","display_name":"Ferroelectricity","score":0.8992553353309631},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8824242353439331},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.8300018310546875},{"id":"133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","score":0.7781821489334106},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.3449000120162964}],"counts_by_year":[{"year":2000,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":3},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":2}],"display_name_alternatives":["A Kerfah","A. Kerfah","A. Kerfah A","Ahmed Kerfah"],"block_key":"a kerfah","works_api_url":"https://api.openalex.org/works?filter=author.id:A5064637167","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}