{"id":"https://openalex.org/W2071532005","doi":"https://doi.org/10.1088/0957-4484/15/5/010","title":"Trapping of positrons at grain boundaries in nanoparticle systems","display_name":"Trapping of positrons at grain boundaries in nanoparticle systems","publication_year":2004,"publication_date":"2004-02-02","ids":{"openalex":"https://openalex.org/W2071532005","doi":"https://doi.org/10.1088/0957-4484/15/5/010","mag":"2071532005"},"language":"en","primary_location":{"id":"doi:10.1088/0957-4484/15/5/010","doi":"https://doi.org/10.1088/0957-4484/15/5/010","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0957-4484/15/5/010","pdf_url":null,"source":{"id":"https://openalex.org/S206811868","display_name":"Nanotechnology","issn_l":"0957-4484","issn":["0957-4484","1361-6528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nanotechnology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"V Thakur","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I86381314","display_name":"Vikram University","ror":"https://ror.org/002k8gm39","country_code":"IN","type":"education","lineage":["https://openalex.org/I86381314"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"V Thakur","raw_affiliation_strings":["School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India","institution_ids":["https://openalex.org/I86381314"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005910854","display_name":"Sharad Shrivastava","orcid":"https://orcid.org/0000-0003-4086-0227","observed_orcids":["https://orcid.org/0000-0003-4086-0227"]},"institutions":[{"id":"https://openalex.org/I86381314","display_name":"Vikram University","ror":"https://ror.org/002k8gm39","country_code":"IN","type":"education","lineage":["https://openalex.org/I86381314"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S B Shrivastava","raw_affiliation_strings":["School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India","institution_ids":["https://openalex.org/I86381314"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084673431","display_name":"Maya Rathore","orcid":"https://orcid.org/0000-0002-3452-4684","observed_orcids":["https://orcid.org/0000-0002-3452-4684"]},"institutions":[{"id":"https://openalex.org/I86381314","display_name":"Vikram University","ror":"https://ror.org/002k8gm39","country_code":"IN","type":"education","lineage":["https://openalex.org/I86381314"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"M K Rathore","raw_affiliation_strings":["School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Studies in Physics, Vikram University, Ujjain (MP)-456010, India","institution_ids":["https://openalex.org/I86381314"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I86381314"],"apc_list":{"value":3325,"currency":"USD","value_usd":3325},"apc_paid":null,"fwci":0.61,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.62552987,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"15","issue":"5","first_page":"467","last_page":"472"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12579","display_name":"Muon and positron interactions and applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12579","display_name":"Muon and positron interactions and applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"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/T10592","display_name":"Fusion materials and technologies","score":0.0,"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/T10523","display_name":"Atomic and Molecular Physics","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/positron-trapping","display_name":"positron trapping","score":0.8740000128746033},{"id":"https://openalex.org/keywords/grain-boundaries","display_name":"grain boundaries","score":0.9850000143051147},{"id":"https://openalex.org/keywords/nanoparticles","display_name":"nanoparticles","score":0.7590000033378601},{"id":"https://openalex.org/keywords/positron-annihilation","display_name":"positron annihilation","score":0.8339999914169312},{"id":"https://openalex.org/keywords/s-parameters","display_name":"S-parameters","score":0.890999972820282},{"id":"https://openalex.org/keywords/grain-size-effects","display_name":"grain size effects","score":0.7519999742507935},{"id":"https://openalex.org/keywords/nanocrystalline-alloys","display_name":"nanocrystalline alloys","score":0.8270000219345093},{"id":"https://openalex.org/keywords/vacancy-clusters","display_name":"vacancy clusters","score":0.6589999794960022},{"id":"https://openalex.org/keywords/diffusion-coefficient","display_name":"diffusion coefficient","score":0.8920000195503235},{"id":"https://openalex.org/keywords/silver","display_name":"silver","score":0.8420000076293945},{"id":"https://openalex.org/keywords/niobium","display_name":"niobium","score":0.9950000047683716},{"id":"https://openalex.org/keywords/al-zn-alloys","display_name":"Al-Zn alloys","score":0.9089999794960022},{"id":"https://openalex.org/keywords/zn-al-mg-alloy","display_name":"Zn-Al-Mg alloy","score":0.9980000257492065}],"concepts":[{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.8843450546264648},{"id":"https://openalex.org/C140676511","wikidata":"https://www.wikidata.org/wiki/Q6964018","display_name":"Nanocrystalline material","level":2,"score":0.8511327505111694},{"id":"https://openalex.org/C47908070","wikidata":"https://www.wikidata.org/wiki/Q900515","display_name":"Grain boundary","level":3,"score":0.7943412065505981},{"id":"https://openalex.org/C192191005","wikidata":"https://www.wikidata.org/wiki/Q466491","display_name":"Grain size","level":2,"score":0.6983407139778137},{"id":"https://openalex.org/C2777924906","wikidata":"https://www.wikidata.org/wiki/Q34168","display_name":"Trapping","level":2,"score":0.6454684734344482},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.5579617023468018},{"id":"https://openalex.org/C114221277","wikidata":"https://www.wikidata.org/wiki/Q899743","display_name":"Vacancy defect","level":2,"score":0.556090235710144},{"id":"https://openalex.org/C201941533","wikidata":"https://www.wikidata.org/wiki/Q188721","display_name":"Annihilation","level":2,"score":0.551171064376831},{"id":"https://openalex.org/C202100949","wikidata":"https://www.wikidata.org/wiki/Q3229","display_name":"Positron","level":3,"score":0.540005087852478},{"id":"https://openalex.org/C155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","level":2,"score":0.47385743260383606},{"id":"https://openalex.org/C84838300","wikidata":"https://www.wikidata.org/wiki/Q264845","display_name":"Grain boundary strengthening","level":4,"score":0.44636887311935425},{"id":"https://openalex.org/C70816921","wikidata":"https://www.wikidata.org/wiki/Q258852","display_name":"Effective diffusion coefficient","level":3,"score":0.43870043754577637},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.41026079654693604},{"id":"https://openalex.org/C159467904","wikidata":"https://www.wikidata.org/wiki/Q2001702","display_name":"Chemical physics","level":1,"score":0.35652393102645874},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.2526918649673462},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.22610357403755188},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.22372668981552124},{"id":"https://openalex.org/C87976508","wikidata":"https://www.wikidata.org/wiki/Q1498213","display_name":"Microstructure","level":2,"score":0.16568416357040405},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.1321488320827484},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07796335220336914},{"id":"https://openalex.org/C147120987","wikidata":"https://www.wikidata.org/wiki/Q2225","display_name":"Electron","level":2,"score":0.06170010566711426},{"id":"https://openalex.org/C143409427","wikidata":"https://www.wikidata.org/wiki/Q161238","display_name":"Magnetic resonance imaging","level":2,"score":0.0},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1088/0957-4484/15/5/010","doi":"https://doi.org/10.1088/0957-4484/15/5/010","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0957-4484/15/5/010","pdf_url":null,"source":{"id":"https://openalex.org/S206811868","display_name":"Nanotechnology","issn_l":"0957-4484","issn":["0957-4484","1361-6528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nanotechnology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W308908904","https://openalex.org/W1972186778","https://openalex.org/W1986403531","https://openalex.org/W1987900706","https://openalex.org/W1993966432","https://openalex.org/W1998321931","https://openalex.org/W2007790926","https://openalex.org/W2029829523","https://openalex.org/W2044471127","https://openalex.org/W2058952786","https://openalex.org/W2062660129"],"related_works":["https://openalex.org/W2055748404","https://openalex.org/W1984918156","https://openalex.org/W2062660129","https://openalex.org/W1972186778","https://openalex.org/W2419444936","https://openalex.org/W3178630455","https://openalex.org/W2090087002","https://openalex.org/W2077780997","https://openalex.org/W2045916700","https://openalex.org/W1991313614"],"abstract_inverted_index":{"The":[0,29,72,85,145,177,192],"positron":[1,75],"annihilation":[2,57],"in":[3,9,65,96,118,122,129,133,173],"nanoparticle":[4],"materials":[5,154,167],"has":[6,33,88,119,195],"been":[7,34,78,89,120,196],"discussed":[8],"terms":[10],"of":[11,15,41,46,55,62,87,99,106,125,136,139,151,189],"the":[12,23,38,52,56,81,97,100,104,112,123,134,149,152,166,174,183],"thermal":[13],"diffusion":[14,30,193],"positrons":[16,42],"at":[17,22,158],"grain":[18,24,47,63,107,113,160,164,184],"surfaces":[19],"and":[20,26,49,51,69],"trapping":[21,31,143],"interfaces":[25],"interfacial":[27],"defects.":[28],"model":[32],"applied":[35],"to":[36,91,171,198],"obtain":[37],"mean":[39,74],"lifetime":[40,178],"as":[43,59],"a":[44,60,202],"function":[45,61],"size":[48,64,98,141,165],"temperature":[50],"S":[53],"-parameter":[54],"radiation":[58],"Ag,":[66],"Nb,":[67],"Zn\u2013Al":[68],"Zn\u2013Al\u2013Mg":[70],"nanocrystallites.":[71],"calculated":[73],"lifetimes":[76],"have":[77],"compared":[79],"with":[80,93],"available":[82],"experimental":[83],"results.":[84],"value":[86],"found":[90,197],"decrease":[92,117],"an":[94],"increase":[95],"grains,":[101],"suggesting":[102,131],"that":[103,148,172,182],"density":[105],"boundaries":[108,185],"decreases":[109],"gradually":[110],"when":[111],"grows.":[114],"A":[115],"fast":[116],"observed":[121],"case":[124,135],"alloys":[126],"but":[127],"not":[128],"metals,":[130],"that,":[132],"alloys,":[137],"grains":[138],"larger":[140,163],"provide":[142],"centres.":[144],"calculations":[146],"show":[147,168],"characteristics":[150],"nanocrystalline":[153],"undergo":[155],"significant":[156],"changes":[157],"lower":[159],"size.":[161],"At":[162],"behaviour":[169],"similar":[170],"bulk":[175],"sample.":[176],"data":[179],"also":[180],"suggest":[181],"may":[186],"be":[187,199],"composed":[188],"vacancy":[190],"clusters.":[191],"coefficient":[194],"described":[200],"by":[201],"relation":[203],".":[204]},"counts_by_year":[{"year":2017,"cited_by_count":1}],"updated_date":"2026-10-01T08:54:57.152042","created_date":"2016-06-24T00:00:00"}