{"id":"https://openalex.org/W2155408555","doi":"https://doi.org/10.1109/20.800933","title":"Rigid disk medium for 20 Gb/in/sup 2/ recording demonstration","display_name":"Rigid disk medium for 20 Gb/in/sup 2/ recording demonstration","publication_year":1999,"publication_date":"1999-01-01","ids":{"openalex":"https://openalex.org/W2155408555","doi":"https://doi.org/10.1109/20.800933","mag":"2155408555"},"language":"en","primary_location":{"id":"doi:10.1109/20.800933","doi":"https://doi.org/10.1109/20.800933","is_oa":false,"landing_page_url":"https://doi.org/10.1109/20.800933","pdf_url":null,"source":{"id":"https://openalex.org/S50523690","display_name":"IEEE Transactions on Magnetics","issn_l":"0018-9464","issn":["0018-9464","1941-0069"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-1","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320755","host_organization_name":"IEEE Magnetics Society","host_organization_lineage":["https://openalex.org/P4310320755","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Magnetics Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Magnetics","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":"https://openalex.org/A5101426459","display_name":"K. Sato","orcid":"https://orcid.org/0000-0003-1047-8596","observed_orcids":["https://orcid.org/0000-0003-1047-8596"]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"K. Sato","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021014160","display_name":"Yasuo Yoshida","orcid":"https://orcid.org/0000-0002-7311-555X","observed_orcids":["https://orcid.org/0000-0002-7311-555X"]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Yoshida","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034084609","display_name":"M. Yamagishi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"M. Yamagishi","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":null,"display_name":"H. Ueno","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"H. Ueno","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059583471","display_name":"H. Akimoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"H. Akimoto","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039720244","display_name":"E.N. Abarra","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"E.N. Abarra","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016963543","display_name":"H. Kanai","orcid":"https://orcid.org/0000-0002-5876-1940","observed_orcids":["https://orcid.org/0000-0002-5876-1940"]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"H. Kanai","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Y. Uehara","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Uehara","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019488016","display_name":"Iwao Okamoto","orcid":"https://orcid.org/0000-0001-6051-0879","observed_orcids":["https://orcid.org/0000-0001-6051-0879"]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"I. Okamoto","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040211595","display_name":"Y. Uematsu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Y. Uematsu","raw_affiliation_strings":["File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"File Memory Laboratory, Fujitsu Laboratories Limited, Atsugi, Japan","institution_ids":["https://openalex.org/I2252096349"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2252096349"],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":1.5049,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.80519743,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"35","issue":"5","first_page":"2655","last_page":"2657"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10049","display_name":"Magnetic properties of thin films","score":0.9369999766349792,"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/T10049","display_name":"Magnetic properties of thin films","score":0.9369999766349792,"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.01759999990463257,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10922","display_name":"Magnetic Properties and Synthesis of Ferrites","score":0.0066999997943639755,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/longitudinal-magnetic-recording","display_name":"longitudinal recording","score":0.7710000276565552},{"id":"https://openalex.org/keywords/high-density-magnetic-recording","display_name":"high-density magnetic recording","score":0.7210000157356262},{"id":"https://openalex.org/keywords/coercivity","display_name":"coercivity","score":0.7059999704360962},{"id":"https://openalex.org/keywords/modulation-noise","display_name":"modulation noise","score":0.5590000152587891},{"id":"https://openalex.org/keywords/activation-volume","display_name":"activation volume","score":0.7070000171661377},{"id":"https://openalex.org/keywords/spin-valve-heads","display_name":"spin valve heads","score":0.6579999923706055},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"bit error rate","score":0.7149999737739563},{"id":"https://openalex.org/keywords/track-pitch","display_name":"track pitch","score":0.6510000228881836}],"concepts":[{"id":"https://openalex.org/C155058782","wikidata":"https://www.wikidata.org/wiki/Q66468430","display_name":"Remanence","level":4,"score":0.7612545490264893},{"id":"https://openalex.org/C126530901","wikidata":"https://www.wikidata.org/wiki/Q432635","display_name":"Coercivity","level":2,"score":0.6964012980461121},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6485257148742676},{"id":"https://openalex.org/C60434167","wikidata":"https://www.wikidata.org/wiki/Q5255001","display_name":"Demagnetizing field","level":4,"score":0.49360883235931396},{"id":"https://openalex.org/C32546565","wikidata":"https://www.wikidata.org/wiki/Q856711","display_name":"Magnetization","level":3,"score":0.4766557812690735},{"id":"https://openalex.org/C46141821","wikidata":"https://www.wikidata.org/wiki/Q209402","display_name":"Nuclear magnetic resonance","level":1,"score":0.46595248579978943},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.463307648897171},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.41597139835357666},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.40507224202156067},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.34044069051742554},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/20.800933","doi":"https://doi.org/10.1109/20.800933","is_oa":false,"landing_page_url":"https://doi.org/10.1109/20.800933","pdf_url":null,"source":{"id":"https://openalex.org/S50523690","display_name":"IEEE Transactions on Magnetics","issn_l":"0018-9464","issn":["0018-9464","1941-0069"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-1","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320755","host_organization_name":"IEEE Magnetics Society","host_organization_lineage":["https://openalex.org/P4310320755","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Magnetics Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Magnetics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1669285020","https://openalex.org/W1996193412","https://openalex.org/W2000506918","https://openalex.org/W2012682856","https://openalex.org/W2052219162","https://openalex.org/W2056153328","https://openalex.org/W2061916920","https://openalex.org/W2067527838","https://openalex.org/W2101203484","https://openalex.org/W2119528764","https://openalex.org/W2119880340","https://openalex.org/W2120362577","https://openalex.org/W2163507814"],"related_works":["https://openalex.org/W2128126925","https://openalex.org/W2000557378","https://openalex.org/W1503248745","https://openalex.org/W2131184330","https://openalex.org/W2035077189","https://openalex.org/W2027819291","https://openalex.org/W1982271532","https://openalex.org/W1965162281","https://openalex.org/W2049793435","https://openalex.org/W2001279632"],"abstract_inverted_index":{"A":[0],"longitudinal":[1],"medium":[2,11],"was":[3,52,85,110],"developed":[4],"for":[5],"20":[6],"Gb/in/sup":[7,125],"2/":[8,126],"recording.":[9],"This":[10],"has":[12],"a":[13,56,69,90,95,117,135,141],"coercivity":[14],"of":[15,49,59,76,120,134],"3380":[16],"Oe":[17,61],"and":[18,26,140],"M/sub":[19],"r//spl":[20],"delta/=0.42":[21],"memu/cm/sup":[22],"2/.":[23],"Modulation":[24],"noise":[25,29,143],"track":[27,108],"edge":[28],"were":[30,79],"well":[31],"suppressed":[32],"by":[33,81,131],"the":[34,37,47,65,107,132],"decrease":[35],"in":[36,55,68],"activation":[38],"volume.":[39],"Remanent":[40],"magnetization":[41],"is":[42,128],"stable;":[43],"at":[44,71,99],"338":[45],"K,":[46],"coefficient":[48],"remanence":[50],"reduction":[51],"-0.066":[53],"dB/decade":[54],"reverse":[57],"field":[58,67],"460":[60],"which":[62],"corresponds":[63],"to":[64],"demagnetizing":[66],"bit":[70],"430":[72,77],"kFCI.":[73],"Recording":[74],"bits":[75],"kfci":[78],"confirmed":[80],"MFM.":[82],"The":[83],"BER":[84],"3.45/spl":[86],"times/10/sup":[87],"-6/":[88],"using":[89],"conventional":[91],"EPR4":[92],"channel":[93],"with":[94],"16/17":[96],"code":[97],"rate":[98],"405":[100],"kBPI":[101],"(430":[102],"kFCI).":[103],"From":[104],"squeeze":[105],"measurements,":[106],"pitch":[109],"0.505":[111],"/spl":[112,122],"mu/m":[113],"(50.3":[114],"ktpi)":[115],"including":[116],"guard":[118],"band":[119],"0.06":[121],"mu/m.":[123],"20.4":[124],"recording":[127],"made":[129],"possible":[130],"combination":[133],"narrow":[136],"gap":[137],"spin-valve":[138],"head":[139],"low":[142],"medium.":[144]},"counts_by_year":[],"updated_date":"2026-10-02T10:15:12.560889","created_date":"2016-06-24T00:00:00"}