Correlation between activation volume and intergranular magnetic interaction in longitudinal media
We have investigated the correlation between the activation grain diameter derived from activation volume and the intergranular magnetic interaction, in CoCrPt-based thin film media fabricated by an ultra clean sputtering process. We found that the activation grain diameter depends on the physical g...
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| Veröffentlicht in: | IEEE transactions on magnetics 2001-07, Vol.37 (4), p.1484-1487 |
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| container_title | IEEE transactions on magnetics |
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| creator | Mikami, M. Djayaprawira, D.D. Kong, T.K. Yoshimura, S. Horii, A. Takahashi, M. |
| description | We have investigated the correlation between the activation grain diameter derived from activation volume and the intergranular magnetic interaction, in CoCrPt-based thin film media fabricated by an ultra clean sputtering process. We found that the activation grain diameter depends on the physical grain diameter and intergranular exchange interaction, but is independent of intergranular magnetostatic interaction (4/spl pi/M/sub s//H/sub k//sup grain/). The activation grain diameter normalized by the physical grain diameter, which corresponds with the normalized coercivity (H/sub c//H/sub k//sup grain/) and microstructure, indicate the character of the intergranular exchange interaction in the media with various compositions. It is also clarified that the media noise can be characterized by the activation grain diameter together with the intergranular magnetostatic interaction. |
| doi_str_mv | 10.1109/20.950878 |
| format | Article |
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We found that the activation grain diameter depends on the physical grain diameter and intergranular exchange interaction, but is independent of intergranular magnetostatic interaction (4/spl pi/M/sub s//H/sub k//sup grain/). The activation grain diameter normalized by the physical grain diameter, which corresponds with the normalized coercivity (H/sub c//H/sub k//sup grain/) and microstructure, indicate the character of the intergranular exchange interaction in the media with various compositions. It is also clarified that the media noise can be characterized by the activation grain diameter together with the intergranular magnetostatic interaction.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.950878</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Activation ; Activation analysis ; Cleaning ; Coercive force ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Correlation ; Elementary particle exchange interactions ; Exact sciences and technology ; Grains ; Magnetic anisotropy ; Magnetic films ; Magnetic properties and materials ; Magnetic recording materials ; Magnetism ; Magnetization ; Magnetostatics ; Media ; Microstructure ; Perpendicular magnetic anisotropy ; Physics ; Sputtering ; Studies of specific magnetic materials ; Substrates ; Thin films</subject><ispartof>IEEE transactions on magnetics, 2001-07, Vol.37 (4), p.1484-1487</ispartof><rights>2002 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2001</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c463t-6db954da96cc1c572366a8d14142a2b7edc371ba32aed7a8784cd37ad05789cd3</citedby><cites>FETCH-LOGICAL-c463t-6db954da96cc1c572366a8d14142a2b7edc371ba32aed7a8784cd37ad05789cd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/950878$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>310,311,315,781,785,790,791,797,23935,23936,25145,27929,27930,54763</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/950878$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14099369$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Mikami, M.</creatorcontrib><creatorcontrib>Djayaprawira, D.D.</creatorcontrib><creatorcontrib>Kong, T.K.</creatorcontrib><creatorcontrib>Yoshimura, S.</creatorcontrib><creatorcontrib>Horii, A.</creatorcontrib><creatorcontrib>Takahashi, M.</creatorcontrib><title>Correlation between activation volume and intergranular magnetic interaction in longitudinal media</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>We have investigated the correlation between the activation grain diameter derived from activation volume and the intergranular magnetic interaction, in CoCrPt-based thin film media fabricated by an ultra clean sputtering process. We found that the activation grain diameter depends on the physical grain diameter and intergranular exchange interaction, but is independent of intergranular magnetostatic interaction (4/spl pi/M/sub s//H/sub k//sup grain/). The activation grain diameter normalized by the physical grain diameter, which corresponds with the normalized coercivity (H/sub c//H/sub k//sup grain/) and microstructure, indicate the character of the intergranular exchange interaction in the media with various compositions. It is also clarified that the media noise can be characterized by the activation grain diameter together with the intergranular magnetostatic interaction.</description><subject>Activation</subject><subject>Activation analysis</subject><subject>Cleaning</subject><subject>Coercive force</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Correlation</subject><subject>Elementary particle exchange interactions</subject><subject>Exact sciences and technology</subject><subject>Grains</subject><subject>Magnetic anisotropy</subject><subject>Magnetic films</subject><subject>Magnetic properties and materials</subject><subject>Magnetic recording materials</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Magnetostatics</subject><subject>Media</subject><subject>Microstructure</subject><subject>Perpendicular magnetic anisotropy</subject><subject>Physics</subject><subject>Sputtering</subject><subject>Studies of specific magnetic materials</subject><subject>Substrates</subject><subject>Thin films</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqFkUtLxDAQgIMouD4OXj0VQcVDNWnTNDnK4gsWvOi5TJPZJZKmmrSK_94sXRQ8KDlMMvPNB5kh5IjRS8aouiropaqorOUWmTHFWU6pUNtkRimTueKC75K9GF_Sk1eMzkg770NAB4Ptfdbi8IHoM9CDfZ9S770bO8zAm8z6AcMqgB8dhKyDlcfB6im97ki09Znr_coOo7EeXNahsXBAdpbgIh5u4j55vr15mt_ni8e7h_n1ItdclEMuTKsqbkAJrZmu6qIUAqRhnPECirZGo8uatVAWgKaG9EWuTVmDoVUtVbruk_PJ-xr6txHj0HQ2anQOPPZjbBTjopJ1RRN59idZSJaOkP-DQggpyrXx5Bf40o8hjSA2UvIkk6pK0MUE6dDHGHDZvAbbQfhsGG3W22sK2kzbS-zpRghRg1umsWsbfxo4VaoUKnHHE2cR8bu8kXwBTLaieg</recordid><startdate>20010701</startdate><enddate>20010701</enddate><creator>Mikami, M.</creator><creator>Djayaprawira, D.D.</creator><creator>Kong, T.K.</creator><creator>Yoshimura, S.</creator><creator>Horii, A.</creator><creator>Takahashi, M.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20010701</creationdate><title>Correlation between activation volume and intergranular magnetic interaction in longitudinal media</title><author>Mikami, M. ; Djayaprawira, D.D. ; Kong, T.K. ; Yoshimura, S. ; Horii, A. ; Takahashi, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-6db954da96cc1c572366a8d14142a2b7edc371ba32aed7a8784cd37ad05789cd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Activation</topic><topic>Activation analysis</topic><topic>Cleaning</topic><topic>Coercive force</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Correlation</topic><topic>Elementary particle exchange interactions</topic><topic>Exact sciences and technology</topic><topic>Grains</topic><topic>Magnetic anisotropy</topic><topic>Magnetic films</topic><topic>Magnetic properties and materials</topic><topic>Magnetic recording materials</topic><topic>Magnetism</topic><topic>Magnetization</topic><topic>Magnetostatics</topic><topic>Media</topic><topic>Microstructure</topic><topic>Perpendicular magnetic anisotropy</topic><topic>Physics</topic><topic>Sputtering</topic><topic>Studies of specific magnetic materials</topic><topic>Substrates</topic><topic>Thin films</topic><toplevel>online_resources</toplevel><creatorcontrib>Mikami, M.</creatorcontrib><creatorcontrib>Djayaprawira, D.D.</creatorcontrib><creatorcontrib>Kong, T.K.</creatorcontrib><creatorcontrib>Yoshimura, S.</creatorcontrib><creatorcontrib>Horii, A.</creatorcontrib><creatorcontrib>Takahashi, M.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Mikami, M.</au><au>Djayaprawira, D.D.</au><au>Kong, T.K.</au><au>Yoshimura, S.</au><au>Horii, A.</au><au>Takahashi, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation between activation volume and intergranular magnetic interaction in longitudinal media</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2001-07-01</date><risdate>2001</risdate><volume>37</volume><issue>4</issue><spage>1484</spage><epage>1487</epage><pages>1484-1487</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>We have investigated the correlation between the activation grain diameter derived from activation volume and the intergranular magnetic interaction, in CoCrPt-based thin film media fabricated by an ultra clean sputtering process. We found that the activation grain diameter depends on the physical grain diameter and intergranular exchange interaction, but is independent of intergranular magnetostatic interaction (4/spl pi/M/sub s//H/sub k//sup grain/). The activation grain diameter normalized by the physical grain diameter, which corresponds with the normalized coercivity (H/sub c//H/sub k//sup grain/) and microstructure, indicate the character of the intergranular exchange interaction in the media with various compositions. It is also clarified that the media noise can be characterized by the activation grain diameter together with the intergranular magnetostatic interaction.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.950878</doi><tpages>4</tpages></addata></record> |
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| subjects | Activation Activation analysis Cleaning Coercive force Condensed matter: electronic structure, electrical, magnetic, and optical properties Correlation Elementary particle exchange interactions Exact sciences and technology Grains Magnetic anisotropy Magnetic films Magnetic properties and materials Magnetic recording materials Magnetism Magnetization Magnetostatics Media Microstructure Perpendicular magnetic anisotropy Physics Sputtering Studies of specific magnetic materials Substrates Thin films |
| title | Correlation between activation volume and intergranular magnetic interaction in longitudinal media |
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