Impact of Anisotropic Exchange on M-H Loops: Application to ECC Media
Micromagnetic simulation results on Co-based recording media are presented which examine the impact of a modified near-neighbor exchange interaction between grains of the form J z (M i z M j z ), reflecting the hexagonal crystal symmetry. Both out-of-plane and in-plane M-H loops are calculated, with...
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| Veröffentlicht in: | IEEE transactions on magnetics 2009-10, Vol.45 (10), p.3942-3945 |
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| container_title | IEEE transactions on magnetics |
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| creator | Plumer, M.L. Rogers, M.C. Meloche, E. |
| description | Micromagnetic simulation results on Co-based recording media are presented which examine the impact of a modified near-neighbor exchange interaction between grains of the form J z (M i z M j z ), reflecting the hexagonal crystal symmetry. Both out-of-plane and in-plane M-H loops are calculated, with an emphasis on a model fit to data reported by Wang . [ IEEE Trans. Magn , vol. 43, p. 682 (2007)] on exchange coupled composite perpendicular media. The principle effect of J z is to increase the coercivity and slope of both hard and soft layers. Improved agreement with experimental data for the in-plane loops is achieved by assuming a substantial value for J z . Possibilities for measurement of J z through spin-wave excitations are discussed. Thermal fluctuation effects are also examined through simulations of the magnetization vs temperature. |
| doi_str_mv | 10.1109/TMAG.2009.2021852 |
| format | Article |
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Both out-of-plane and in-plane M-H loops are calculated, with an emphasis on a model fit to data reported by Wang . [ IEEE Trans. Magn , vol. 43, p. 682 (2007)] on exchange coupled composite perpendicular media. The principle effect of J z is to increase the coercivity and slope of both hard and soft layers. Improved agreement with experimental data for the in-plane loops is achieved by assuming a substantial value for J z . Possibilities for measurement of J z through spin-wave excitations are discussed. Thermal fluctuation effects are also examined through simulations of the magnetization vs temperature.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2009.2021852</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Anisotropic magnetoresistance ; Composite ; Computer simulation ; Crystallization ; Crystals ; Error correction codes ; Fluctuation ; hysteresis ; Magnetic films ; Magnetic storage ; Magnetism ; Magnetization ; Marine technology ; Media ; micromagnetic ; Micromagnetics ; Perpendicular magnetic recording ; perpendicular media ; Physics ; Simulation ; Symmetry ; Temperature ; Thermal stability</subject><ispartof>IEEE transactions on magnetics, 2009-10, Vol.45 (10), p.3942-3945</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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Both out-of-plane and in-plane M-H loops are calculated, with an emphasis on a model fit to data reported by Wang . [ IEEE Trans. Magn , vol. 43, p. 682 (2007)] on exchange coupled composite perpendicular media. The principle effect of J z is to increase the coercivity and slope of both hard and soft layers. Improved agreement with experimental data for the in-plane loops is achieved by assuming a substantial value for J z . Possibilities for measurement of J z through spin-wave excitations are discussed. Thermal fluctuation effects are also examined through simulations of the magnetization vs temperature.</description><subject>Anisotropic magnetoresistance</subject><subject>Composite</subject><subject>Computer simulation</subject><subject>Crystallization</subject><subject>Crystals</subject><subject>Error correction codes</subject><subject>Fluctuation</subject><subject>hysteresis</subject><subject>Magnetic films</subject><subject>Magnetic storage</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Marine technology</subject><subject>Media</subject><subject>micromagnetic</subject><subject>Micromagnetics</subject><subject>Perpendicular magnetic recording</subject><subject>perpendicular media</subject><subject>Physics</subject><subject>Simulation</subject><subject>Symmetry</subject><subject>Temperature</subject><subject>Thermal stability</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkEFLwzAUx4MoOKcfQLwET14689IkbbyVUbfBhpd5DmmaaEbX1KYD_fZ2bHjw8h7v8fs_Hj-E7oHMAIh83m6KxYwSIsdCIef0Ak1AMkgIEfISTQiBPJFMsGt0E-NuHBkHMkHlat9pM-DgcNH6GIY-dN7g8tt86vbD4tDiTbLE6xC6-IKLrmu80YMf10PA5XyON7b2-hZdOd1Ee3fuU_T-Wm7ny2T9tljNi3ViUsqHhDlNZSZNpXMOGaS1E5oApVYLntXCsoo5gCyviXak0sKZTNY2dZV1KRW1Tqfo6XS368PXwcZB7X00tml0a8MhKkgFh5SxjI3o4z90Fw59O36nci4kSEHpCMEJMn2IsbdOdb3f6_5HAVFHr-roVR29qrPXMfNwynhr7R_PKc9IztNfhWdx2g</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Plumer, M.L.</creator><creator>Rogers, M.C.</creator><creator>Meloche, E.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</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>20091001</creationdate><title>Impact of Anisotropic Exchange on M-H Loops: Application to ECC Media</title><author>Plumer, M.L. ; Rogers, M.C. ; Meloche, E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-4fa2979cba851713df6a0122ea657d6e4b4f1178d0af0ba6fc79de3fbef326da3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Anisotropic magnetoresistance</topic><topic>Composite</topic><topic>Computer simulation</topic><topic>Crystallization</topic><topic>Crystals</topic><topic>Error correction codes</topic><topic>Fluctuation</topic><topic>hysteresis</topic><topic>Magnetic films</topic><topic>Magnetic storage</topic><topic>Magnetism</topic><topic>Magnetization</topic><topic>Marine technology</topic><topic>Media</topic><topic>micromagnetic</topic><topic>Micromagnetics</topic><topic>Perpendicular magnetic recording</topic><topic>perpendicular media</topic><topic>Physics</topic><topic>Simulation</topic><topic>Symmetry</topic><topic>Temperature</topic><topic>Thermal stability</topic><toplevel>online_resources</toplevel><creatorcontrib>Plumer, M.L.</creatorcontrib><creatorcontrib>Rogers, M.C.</creatorcontrib><creatorcontrib>Meloche, E.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</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>Plumer, M.L.</au><au>Rogers, M.C.</au><au>Meloche, E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of Anisotropic Exchange on M-H Loops: Application to ECC Media</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2009-10-01</date><risdate>2009</risdate><volume>45</volume><issue>10</issue><spage>3942</spage><epage>3945</epage><pages>3942-3945</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>Micromagnetic simulation results on Co-based recording media are presented which examine the impact of a modified near-neighbor exchange interaction between grains of the form J z (M i z M j z ), reflecting the hexagonal crystal symmetry. 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| subjects | Anisotropic magnetoresistance Composite Computer simulation Crystallization Crystals Error correction codes Fluctuation hysteresis Magnetic films Magnetic storage Magnetism Magnetization Marine technology Media micromagnetic Micromagnetics Perpendicular magnetic recording perpendicular media Physics Simulation Symmetry Temperature Thermal stability |
| title | Impact of Anisotropic Exchange on M-H Loops: Application to ECC Media |
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