Domain Wall Assisted Magnetic Recording
Using numerical and analytical micromagnetics we calculated the switching fields and energy barriers of the composite (exchange spring) magnetic recording media, which consist of layers with high and low magnetocrystalline anisotropy. We demonstrate that the ultimate potential of the composite media...
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| creator | Dobin, A. Yu Richter, H. J |
| description | Using numerical and analytical micromagnetics we calculated the switching
fields and energy barriers of the composite (exchange spring) magnetic
recording media, which consist of layers with high and low magnetocrystalline
anisotropy. We demonstrate that the ultimate potential of the composite media
is realized if the interfacial domain wall fits inside the layers. The
switching occurs via domain wall nucleation, compression in the applied field,
de-pinning and propagation through the hard/soft interface. This domain wall
assisted switching results in a significant reduction of the switching field
without substantial decrease of the for thermal activation energy barrier. We
demonstrate that the Domain Wall Assisted Magnetic Recording (DWAMR) offers up
to a three-fold areal density gain over conventional single layer recording. |
| doi_str_mv | 10.48550/arxiv.cond-mat/0605368 |
| format | Article |
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fields and energy barriers of the composite (exchange spring) magnetic
recording media, which consist of layers with high and low magnetocrystalline
anisotropy. We demonstrate that the ultimate potential of the composite media
is realized if the interfacial domain wall fits inside the layers. The
switching occurs via domain wall nucleation, compression in the applied field,
de-pinning and propagation through the hard/soft interface. This domain wall
assisted switching results in a significant reduction of the switching field
without substantial decrease of the for thermal activation energy barrier. We
demonstrate that the Domain Wall Assisted Magnetic Recording (DWAMR) offers up
to a three-fold areal density gain over conventional single layer recording.</description><identifier>DOI: 10.48550/arxiv.cond-mat/0605368</identifier><language>eng</language><subject>Physics - Materials Science</subject><creationdate>2006-05</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/cond-mat/0605368$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.cond-mat/0605368$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1063/1.2335590$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Dobin, A. Yu</creatorcontrib><creatorcontrib>Richter, H. J</creatorcontrib><title>Domain Wall Assisted Magnetic Recording</title><description>Using numerical and analytical micromagnetics we calculated the switching
fields and energy barriers of the composite (exchange spring) magnetic
recording media, which consist of layers with high and low magnetocrystalline
anisotropy. We demonstrate that the ultimate potential of the composite media
is realized if the interfacial domain wall fits inside the layers. The
switching occurs via domain wall nucleation, compression in the applied field,
de-pinning and propagation through the hard/soft interface. This domain wall
assisted switching results in a significant reduction of the switching field
without substantial decrease of the for thermal activation energy barrier. We
demonstrate that the Domain Wall Assisted Magnetic Recording (DWAMR) offers up
to a three-fold areal density gain over conventional single layer recording.</description><subject>Physics - Materials Science</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNpjYJA3NNAzsTA1NdBPLKrILNNLzs9L0c1NLNE3MDMwNTaz4GRQd8nPTczMUwhPzMlRcCwuziwuSU1R8E1Mz0styUxWCEpNzi9KycxL52FgTUvMKU7lhdLcDKpuriHOHrpgg-MLijJzE4sq40EWxAMtiIdaYEysOgB-bjWs</recordid><startdate>20060515</startdate><enddate>20060515</enddate><creator>Dobin, A. Yu</creator><creator>Richter, H. J</creator><scope>GOX</scope></search><sort><creationdate>20060515</creationdate><title>Domain Wall Assisted Magnetic Recording</title><author>Dobin, A. Yu ; Richter, H. J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_cond_mat_06053683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Physics - Materials Science</topic><toplevel>online_resources</toplevel><creatorcontrib>Dobin, A. Yu</creatorcontrib><creatorcontrib>Richter, H. J</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Dobin, A. Yu</au><au>Richter, H. J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Domain Wall Assisted Magnetic Recording</atitle><date>2006-05-15</date><risdate>2006</risdate><abstract>Using numerical and analytical micromagnetics we calculated the switching
fields and energy barriers of the composite (exchange spring) magnetic
recording media, which consist of layers with high and low magnetocrystalline
anisotropy. We demonstrate that the ultimate potential of the composite media
is realized if the interfacial domain wall fits inside the layers. The
switching occurs via domain wall nucleation, compression in the applied field,
de-pinning and propagation through the hard/soft interface. This domain wall
assisted switching results in a significant reduction of the switching field
without substantial decrease of the for thermal activation energy barrier. We
demonstrate that the Domain Wall Assisted Magnetic Recording (DWAMR) offers up
to a three-fold areal density gain over conventional single layer recording.</abstract><doi>10.48550/arxiv.cond-mat/0605368</doi><oa>free_for_read</oa></addata></record> |
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| identifier | DOI: 10.48550/arxiv.cond-mat/0605368 |
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| source | arXiv.org |
| subjects | Physics - Materials Science |
| title | Domain Wall Assisted Magnetic Recording |
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