Magnetic multilayered films with reduced magnetostriction
1. Field of the Invention It is the primary object of the present invention to provide a shield and pole material with reduced magnetostriction while preserving good magnetic characteristics. This material is used in recording heads in tape and disk drives. The material is a repeating sequence of th...
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| creator | Jarratt, James Devereaux |
| description | 1. Field of the Invention
It is the primary object of the present invention to provide a shield and pole material with reduced magnetostriction while preserving good magnetic characteristics. This material is used in recording heads in tape and disk drives. The material is a repeating sequence of three layers. One layer is FeX(N) where the (N) indicates a nitrogenated film and the additional element, X, is preferentially Ta but can be selected from a group of elements. Another layer is made from a NiFe alloy. The third layer, disposed between the FeX(N) and NiFe layers is tantalum. The sequence of three layers is repeated to build the required thickness for the final material. |
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It is the primary object of the present invention to provide a shield and pole material with reduced magnetostriction while preserving good magnetic characteristics. This material is used in recording heads in tape and disk drives. The material is a repeating sequence of three layers. One layer is FeX(N) where the (N) indicates a nitrogenated film and the additional element, X, is preferentially Ta but can be selected from a group of elements. Another layer is made from a NiFe alloy. The third layer, disposed between the FeX(N) and NiFe layers is tantalum. The sequence of three layers is repeated to build the required thickness for the final material.</description><language>eng</language><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6760198$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,798,881,64012</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6760198$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Jarratt, James Devereaux</creatorcontrib><creatorcontrib>International Business Machines Corporation</creatorcontrib><title>Magnetic multilayered films with reduced magnetostriction</title><description>1. Field of the Invention
It is the primary object of the present invention to provide a shield and pole material with reduced magnetostriction while preserving good magnetic characteristics. This material is used in recording heads in tape and disk drives. The material is a repeating sequence of three layers. One layer is FeX(N) where the (N) indicates a nitrogenated film and the additional element, X, is preferentially Ta but can be selected from a group of elements. Another layer is made from a NiFe alloy. The third layer, disposed between the FeX(N) and NiFe layers is tantalum. The sequence of three layers is repeated to build the required thickness for the final material.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZLD0TUzPSy3JTFbILc0pycxJrEwtSk1RSMvMyS1WKM8syVAAckuTgUK5YIX5xSVFmcklmfl5PAysaYk5xam8UJqbQcHNNcTZQ7e0uCCxJDWvpDg-vSgRRBmYmZsZGFpaGBOhBABmJzBu</recordid><startdate>20040706</startdate><enddate>20040706</enddate><creator>Jarratt, James Devereaux</creator><scope>EFH</scope></search><sort><creationdate>20040706</creationdate><title>Magnetic multilayered films with reduced magnetostriction</title><author>Jarratt, James Devereaux</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_067601983</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Jarratt, James Devereaux</creatorcontrib><creatorcontrib>International Business Machines Corporation</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Jarratt, James Devereaux</au><aucorp>International Business Machines Corporation</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Magnetic multilayered films with reduced magnetostriction</title><date>2004-07-06</date><risdate>2004</risdate><abstract>1. Field of the Invention
It is the primary object of the present invention to provide a shield and pole material with reduced magnetostriction while preserving good magnetic characteristics. This material is used in recording heads in tape and disk drives. The material is a repeating sequence of three layers. One layer is FeX(N) where the (N) indicates a nitrogenated film and the additional element, X, is preferentially Ta but can be selected from a group of elements. Another layer is made from a NiFe alloy. The third layer, disposed between the FeX(N) and NiFe layers is tantalum. The sequence of three layers is repeated to build the required thickness for the final material.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Magnetic multilayered films with reduced magnetostriction |
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