Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure
We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO3 single crystal. While the observed change is marginal in the tetragonal phase of BaTiO3, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of...
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| Veröffentlicht in: | Applied physics letters 2015-08, Vol.107 (7) |
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| creator | Savitha Pillai, S. Kojima, H. Itoh, M. Taniyama, T. |
| description | We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO3 single crystal. While the observed change is marginal in the tetragonal phase of BaTiO3, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of 66 kV/cm. We attribute it to possible electric-field-induced variations of the spin-dependent electronic structures, i.e., spin polarization, of the Fe via interfacial strain transfer from BaTiO3. The contrasting results for the different phases of BaTiO3 are discussed, associated with the distinct aspects of the ferroelectric polarization switching processes in each phase. |
| doi_str_mv | 10.1063/1.4929339 |
| format | Article |
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While the observed change is marginal in the tetragonal phase of BaTiO3, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of 66 kV/cm. We attribute it to possible electric-field-induced variations of the spin-dependent electronic structures, i.e., spin polarization, of the Fe via interfacial strain transfer from BaTiO3. The contrasting results for the different phases of BaTiO3 are discussed, associated with the distinct aspects of the ferroelectric polarization switching processes in each phase.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4929339</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Barium titanates ; Cobalt ; Electric fields ; Electron spin ; Ferroelectric materials ; Ferroelectricity ; Giant magnetoresistance ; Heterostructures ; Iron ; Magnetoresistance ; Magnetoresistivity ; Polarization (spin alignment) ; Single crystals</subject><ispartof>Applied physics letters, 2015-08, Vol.107 (7)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c323t-4bb1d05e1b2d4bf404298bd892de1f822d8d287f0a0408070263b67e727376fb3</citedby><cites>FETCH-LOGICAL-c323t-4bb1d05e1b2d4bf404298bd892de1f822d8d287f0a0408070263b67e727376fb3</cites><orcidid>0000-0002-5122-8190</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Savitha Pillai, S.</creatorcontrib><creatorcontrib>Kojima, H.</creatorcontrib><creatorcontrib>Itoh, M.</creatorcontrib><creatorcontrib>Taniyama, T.</creatorcontrib><title>Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure</title><title>Applied physics letters</title><description>We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO3 single crystal. While the observed change is marginal in the tetragonal phase of BaTiO3, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of 66 kV/cm. We attribute it to possible electric-field-induced variations of the spin-dependent electronic structures, i.e., spin polarization, of the Fe via interfacial strain transfer from BaTiO3. The contrasting results for the different phases of BaTiO3 are discussed, associated with the distinct aspects of the ferroelectric polarization switching processes in each phase.</description><subject>Applied physics</subject><subject>Barium titanates</subject><subject>Cobalt</subject><subject>Electric fields</subject><subject>Electron spin</subject><subject>Ferroelectric materials</subject><subject>Ferroelectricity</subject><subject>Giant magnetoresistance</subject><subject>Heterostructures</subject><subject>Iron</subject><subject>Magnetoresistance</subject><subject>Magnetoresistivity</subject><subject>Polarization (spin alignment)</subject><subject>Single crystals</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNotkDFPwzAUhC0EEqUw8A8sMTGksf3S2BkhooAUqUuZI8d5Lq7SuNjOwL8nqJ1OJ52-Ox0hj5ytOCsh56uiEhVAdUUWnEmZAefqmiwYY5CV1ZrfkrsYD7NdC4AFcY1OGPRAcUCTgjOZdTj01PgxBT9Qb-ne6THRo96PmHzA6GLSo0HqRlr7vJ7yDeaveue2QI_TkJzFELwz9Btnso8pTCZNAe_JjdVDxIeLLsnX5m1Xf2TN9v2zfmkyAwJSVnQd79kaeSf6orMFK0Slul5VokdulRC96oWSlmlWMMUkEyV0pUQpJMjSdrAkT2fuKfifCWNqD34K41zZCi4KzgRwNaeezykzT4wBbXsK7qjDb8tZ-_9ky9vLk_AHx4dlYA</recordid><startdate>20150817</startdate><enddate>20150817</enddate><creator>Savitha Pillai, S.</creator><creator>Kojima, H.</creator><creator>Itoh, M.</creator><creator>Taniyama, T.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5122-8190</orcidid></search><sort><creationdate>20150817</creationdate><title>Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure</title><author>Savitha Pillai, S. ; Kojima, H. ; Itoh, M. ; Taniyama, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-4bb1d05e1b2d4bf404298bd892de1f822d8d287f0a0408070263b67e727376fb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Applied physics</topic><topic>Barium titanates</topic><topic>Cobalt</topic><topic>Electric fields</topic><topic>Electron spin</topic><topic>Ferroelectric materials</topic><topic>Ferroelectricity</topic><topic>Giant magnetoresistance</topic><topic>Heterostructures</topic><topic>Iron</topic><topic>Magnetoresistance</topic><topic>Magnetoresistivity</topic><topic>Polarization (spin alignment)</topic><topic>Single crystals</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Savitha Pillai, S.</creatorcontrib><creatorcontrib>Kojima, H.</creatorcontrib><creatorcontrib>Itoh, M.</creatorcontrib><creatorcontrib>Taniyama, T.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Savitha Pillai, S.</au><au>Kojima, H.</au><au>Itoh, M.</au><au>Taniyama, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure</atitle><jtitle>Applied physics letters</jtitle><date>2015-08-17</date><risdate>2015</risdate><volume>107</volume><issue>7</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>We report lateral electric-field-driven sizable changes in the magnetoresistance of Co/Cu/Fe tri-layered wires on BaTiO3 single crystal. While the observed change is marginal in the tetragonal phase of BaTiO3, it reaches over 40% in the orthorhombic and rhombohedral phases with an electric field of 66 kV/cm. We attribute it to possible electric-field-induced variations of the spin-dependent electronic structures, i.e., spin polarization, of the Fe via interfacial strain transfer from BaTiO3. The contrasting results for the different phases of BaTiO3 are discussed, associated with the distinct aspects of the ferroelectric polarization switching processes in each phase.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4929339</doi><orcidid>https://orcid.org/0000-0002-5122-8190</orcidid></addata></record> |
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| subjects | Applied physics Barium titanates Cobalt Electric fields Electron spin Ferroelectric materials Ferroelectricity Giant magnetoresistance Heterostructures Iron Magnetoresistance Magnetoresistivity Polarization (spin alignment) Single crystals |
| title | Lateral electric-field control of giant magnetoresistance in Co/Cu/Fe/BaTiO3 multiferroic heterostructure |
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