{"id":"https://openalex.org/A5157036652","orcid":null,"observed_orcids":[],"display_name":"Rajeev Kumar Sivastava","raw_author_names":["Rajeev Kumar Sivastava","Rajeev Kumar Srivastava","Srivastava, Rajeev Kumar"],"full_name":"Rajeev Kumar Sivastava","works_count":3,"cited_by_count":1,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":1,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5157036652","orcid":null,"observed_orcids":[]},"affiliations":[],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11733","display_name":"X-ray Spectroscopy and Fluorescence Analysis","count":3,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12039","display_name":"Electron and X-Ray Spectroscopy Techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/2508","display_name":"Surfaces, Coatings and Films"},"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/T11854","display_name":"Laser-induced spectroscopy and plasma","count":2,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"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/T10523","display_name":"Atomic and Molecular Physics","count":1,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11733","display_name":"X-ray Spectroscopy and Fluorescence Analysis","value":1.37e-05,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11854","display_name":"Laser-induced spectroscopy and plasma","value":1.29e-05,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"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/T12039","display_name":"Electron and X-Ray Spectroscopy Techniques","value":8.9e-06,"subfield":{"id":"https://openalex.org/subfields/2508","display_name":"Surfaces, Coatings and Films"},"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/T10523","display_name":"Atomic and Molecular Physics","value":1.7e-06,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"110879396","wikidata":"https://www.wikidata.org/wiki/Q58392","display_name":"Plasmon","score":0.6448000073432922},{"id":"136676167","wikidata":"https://www.wikidata.org/wiki/Q1151829","display_name":"Surface plasmon","score":0.6162999868392944},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.5557000041007996},{"id":"19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","score":0.5361999869346619},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.3571999967098236}],"counts_by_year":[{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":1}],"display_name_alternatives":["Rajeev Kumar Sivastava","Rajeev Kumar Srivastava","Srivastava, Rajeev Kumar"],"block_key":"r sivastava","works_api_url":"https://api.openalex.org/works?filter=author.id:A5157036652","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5157036652","updated_date":"2026-11-08T12:57:04","created_date":"2026-10-05T00:00:00"}
