Domain structure and perpendicular magnetic anisotropy in CoFe/Pd multilayers using off-axis electron holography
Multilayers of Co90Fe10/Pd with different bilayer thicknesses, have been deposited by dc-magnetron sputtering on thermally oxidized Si wafers. Transmission electron microscopy showed that the highly textured crystalline films had columnar structure, while scanning transmission electron microscopy an...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2015-08, Vol.388 (C), p.16-21 |
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| container_issue | C |
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| container_title | Journal of magnetism and magnetic materials |
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| creator | Zhang, Desai Shaw, Justin M. Smith, David J. McCartney, Martha R. |
| description | Multilayers of Co90Fe10/Pd with different bilayer thicknesses, have been deposited by dc-magnetron sputtering on thermally oxidized Si wafers. Transmission electron microscopy showed that the highly textured crystalline films had columnar structure, while scanning transmission electron microscopy and atomic force microscopy respectively indicated some layer waviness and surface roughness. The magnetic domain structure and perpendicular magnetic anisotropy (PMA) of the Co90Fe10/Pd multilayers were investigated by off-axis electron holography and magnetic force microscopy. The Co90Fe10 layer thickness was the primary factor determining the magnetic domain size and the perpendicular magnetization: both decreased as the thickness increased. The strongest PMA was observed in the sample with the thinnest magnetic layer of 0.45nm.
•Multilayers of Co90Fe10/Pd with different bilayer thickness were deposited using sputtering.•Sample examined using (S)TEM and off-axis electron holography..•Co90Fe10 layer thickness was the primary factor determining magnetic domain morphology.•Perpendicular magnetic isotropy (PMA) decreased as Co90Fe10 layer thickness increased. |
| doi_str_mv | 10.1016/j.jmmm.2015.04.015 |
| format | Article |
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•Multilayers of Co90Fe10/Pd with different bilayer thickness were deposited using sputtering.•Sample examined using (S)TEM and off-axis electron holography..•Co90Fe10 layer thickness was the primary factor determining magnetic domain morphology.•Perpendicular magnetic isotropy (PMA) decreased as Co90Fe10 layer thickness increased.</description><identifier>ISSN: 0304-8853</identifier><identifier>DOI: 10.1016/j.jmmm.2015.04.015</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>CoFe/Pd multilayers ; Columnar structure ; Holography ; Magnetic anisotropy ; Magnetic domain structure ; Magnetic domains ; Multilayers ; Off-axis electron holography ; Palladium ; Perpendicular magnetic anisotropy ; Scanning electron microscopy ; Waviness</subject><ispartof>Journal of magnetism and magnetic materials, 2015-08, Vol.388 (C), p.16-21</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-2b21ac751eeac5237bace22f04e104e3f8fa13698b21f8ebe5531d5f85039f173</citedby><cites>FETCH-LOGICAL-c404t-2b21ac751eeac5237bace22f04e104e3f8fa13698b21f8ebe5531d5f85039f173</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmmm.2015.04.015$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,780,784,885,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1247840$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Desai</creatorcontrib><creatorcontrib>Shaw, Justin M.</creatorcontrib><creatorcontrib>Smith, David J.</creatorcontrib><creatorcontrib>McCartney, Martha R.</creatorcontrib><title>Domain structure and perpendicular magnetic anisotropy in CoFe/Pd multilayers using off-axis electron holography</title><title>Journal of magnetism and magnetic materials</title><description>Multilayers of Co90Fe10/Pd with different bilayer thicknesses, have been deposited by dc-magnetron sputtering on thermally oxidized Si wafers. Transmission electron microscopy showed that the highly textured crystalline films had columnar structure, while scanning transmission electron microscopy and atomic force microscopy respectively indicated some layer waviness and surface roughness. The magnetic domain structure and perpendicular magnetic anisotropy (PMA) of the Co90Fe10/Pd multilayers were investigated by off-axis electron holography and magnetic force microscopy. The Co90Fe10 layer thickness was the primary factor determining the magnetic domain size and the perpendicular magnetization: both decreased as the thickness increased. The strongest PMA was observed in the sample with the thinnest magnetic layer of 0.45nm.
•Multilayers of Co90Fe10/Pd with different bilayer thickness were deposited using sputtering.•Sample examined using (S)TEM and off-axis electron holography..•Co90Fe10 layer thickness was the primary factor determining magnetic domain morphology.•Perpendicular magnetic isotropy (PMA) decreased as Co90Fe10 layer thickness increased.</description><subject>CoFe/Pd multilayers</subject><subject>Columnar structure</subject><subject>Holography</subject><subject>Magnetic anisotropy</subject><subject>Magnetic domain structure</subject><subject>Magnetic domains</subject><subject>Multilayers</subject><subject>Off-axis electron holography</subject><subject>Palladium</subject><subject>Perpendicular magnetic anisotropy</subject><subject>Scanning electron microscopy</subject><subject>Waviness</subject><issn>0304-8853</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kDFv2zAQhTW0QBMnf6ATkSmLlCNFWjSQJXDrNkCAdkhngqaONg2JVEiqiP99KThzh8Mb7nuHd6-qvlJoKND1w6k5jePYMKCiAd4U-VRdQQu8llK0X6rrlE4AQLlcX1XTtzBq50nKcTZ5jki078mEcULfOzMPOpJRHzxmZ8rKpZBjmM6kWLZhhw-_ezLOQ3aDPmNMZE7OH0iwttbvLhEc0BTek2MYwiHq6Xi-qT5bPSS8_dBV9Wf3_XX7s3759eN5-_RSGw4812zPqDadoIjaCNZ2e22QMQscaZnWSqtpu97IwlmJexSipb2wUkC7sbRrV9Xd5W5I2alkXEZzNMH7kkhRxjvJoUD3F2iK4W3GlNXoksFh0B7DnBTtYNMJyWBdUHZBTQwpRbRqim7U8awoqKV3dVJL72rpXQFXRYrp8WLC8ulfh3EJgt5g7-KSow_uf_Z_1wGQCQ</recordid><startdate>20150815</startdate><enddate>20150815</enddate><creator>Zhang, Desai</creator><creator>Shaw, Justin M.</creator><creator>Smith, David J.</creator><creator>McCartney, Martha R.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20150815</creationdate><title>Domain structure and perpendicular magnetic anisotropy in CoFe/Pd multilayers using off-axis electron holography</title><author>Zhang, Desai ; Shaw, Justin M. ; Smith, David J. ; McCartney, Martha R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-2b21ac751eeac5237bace22f04e104e3f8fa13698b21f8ebe5531d5f85039f173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>CoFe/Pd multilayers</topic><topic>Columnar structure</topic><topic>Holography</topic><topic>Magnetic anisotropy</topic><topic>Magnetic domain structure</topic><topic>Magnetic domains</topic><topic>Multilayers</topic><topic>Off-axis electron holography</topic><topic>Palladium</topic><topic>Perpendicular magnetic anisotropy</topic><topic>Scanning electron microscopy</topic><topic>Waviness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Desai</creatorcontrib><creatorcontrib>Shaw, Justin M.</creatorcontrib><creatorcontrib>Smith, David J.</creatorcontrib><creatorcontrib>McCartney, Martha R.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials 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>OSTI.GOV</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Desai</au><au>Shaw, Justin M.</au><au>Smith, David J.</au><au>McCartney, Martha R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Domain structure and perpendicular magnetic anisotropy in CoFe/Pd multilayers using off-axis electron holography</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2015-08-15</date><risdate>2015</risdate><volume>388</volume><issue>C</issue><spage>16</spage><epage>21</epage><pages>16-21</pages><issn>0304-8853</issn><abstract>Multilayers of Co90Fe10/Pd with different bilayer thicknesses, have been deposited by dc-magnetron sputtering on thermally oxidized Si wafers. Transmission electron microscopy showed that the highly textured crystalline films had columnar structure, while scanning transmission electron microscopy and atomic force microscopy respectively indicated some layer waviness and surface roughness. The magnetic domain structure and perpendicular magnetic anisotropy (PMA) of the Co90Fe10/Pd multilayers were investigated by off-axis electron holography and magnetic force microscopy. The Co90Fe10 layer thickness was the primary factor determining the magnetic domain size and the perpendicular magnetization: both decreased as the thickness increased. The strongest PMA was observed in the sample with the thinnest magnetic layer of 0.45nm.
•Multilayers of Co90Fe10/Pd with different bilayer thickness were deposited using sputtering.•Sample examined using (S)TEM and off-axis electron holography..•Co90Fe10 layer thickness was the primary factor determining magnetic domain morphology.•Perpendicular magnetic isotropy (PMA) decreased as Co90Fe10 layer thickness increased.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2015.04.015</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | CoFe/Pd multilayers Columnar structure Holography Magnetic anisotropy Magnetic domain structure Magnetic domains Multilayers Off-axis electron holography Palladium Perpendicular magnetic anisotropy Scanning electron microscopy Waviness |
| title | Domain structure and perpendicular magnetic anisotropy in CoFe/Pd multilayers using off-axis electron holography |
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