A strong enhancement of CPP-GMR by using large resistivity magnetic materials
We found a ferromagnetic material Co–Mn–Al that shows large specific magnetoresistance change (Δ RA) in the fully metallic current-perpendicular-to-plane (CPP) spin valve system when used for pinned and free layers. The Co–Mn–Al films were sputter-deposited at room temperature and have disorderd cry...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.1895-1896 |
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| container_end_page | 1896 |
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| container_issue | 2 |
| container_start_page | 1895 |
| container_title | Journal of magnetism and magnetic materials |
| container_volume | 310 |
| creator | Jogo, A. Nagasaka, K. Ibusuki, T. Oshima, H. Shimizu, Y. Uzumaki, T. Tanaka, A. |
| description | We found a ferromagnetic material Co–Mn–Al that shows large specific magnetoresistance change (Δ
RA) in the fully metallic current-perpendicular-to-plane (CPP) spin valve system when used for pinned and free layers. The Co–Mn–Al films were sputter-deposited at room temperature and have disorderd crystral structure. Analyzing the experimental results with the semiclassical two-current theory, we concluded that the enhancement in Δ
RA is ascribed to compatibility of high resistivity and a large spin-asymmetry coefficient for the spin-dependent bulk scattering of the alloy. The results were compared with those for the conventional Co–Fe alloy and for a Co–Fe–Al alloy that also shows large Δ
RA. |
| doi_str_mv | 10.1016/j.jmmm.2006.10.681 |
| format | Article |
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RA) in the fully metallic current-perpendicular-to-plane (CPP) spin valve system when used for pinned and free layers. The Co–Mn–Al films were sputter-deposited at room temperature and have disorderd crystral structure. Analyzing the experimental results with the semiclassical two-current theory, we concluded that the enhancement in Δ
RA is ascribed to compatibility of high resistivity and a large spin-asymmetry coefficient for the spin-dependent bulk scattering of the alloy. The results were compared with those for the conventional Co–Fe alloy and for a Co–Fe–Al alloy that also shows large Δ
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RA) in the fully metallic current-perpendicular-to-plane (CPP) spin valve system when used for pinned and free layers. The Co–Mn–Al films were sputter-deposited at room temperature and have disorderd crystral structure. Analyzing the experimental results with the semiclassical two-current theory, we concluded that the enhancement in Δ
RA is ascribed to compatibility of high resistivity and a large spin-asymmetry coefficient for the spin-dependent bulk scattering of the alloy. The results were compared with those for the conventional Co–Fe alloy and for a Co–Fe–Al alloy that also shows large Δ
RA.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Current-perpendicular-to-plane</subject><subject>Exact sciences and technology</subject><subject>Giant magnetoresistance</subject><subject>Heusler alloy</subject><subject>Magnetic properties and materials</subject><subject>Magnetotransport phenomena, materials for magnetotransport</subject><subject>Physics</subject><subject>Read head</subject><subject>Spin valve</subject><subject>Studies of specific magnetic materials</subject><issn>0304-8853</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp9kE1PwzAMhnsAiTH4A5x6gVtL0ny1EpdpgoG0iQnBOcpSZ6Tqx0iySfv3pNokbvhi6_VrW36S5A6jHCPMH5u86bouLxDiUch5iS-SCSKIZmXJyFVy7X2DEMK05JNkNUt9cEO_TaH_Vr2GDvqQDiadr9fZYvWRbo7p3tvYb5XbQurAWx_swYZj2qltD8HqWARwVrX-Jrk0McHtOU-Tr5fnz_lrtnxfvM1ny0zTQoSsFgWUHG0MYxUSjJJSMMCcGkErXNRCCaQwGEKYifIGkZKxmipec02QAUSmycNp784NP3vwQXbWa2hb1cOw97KoKjZGNBYno3aD9w6M3DnbKXeUGMmRlmzkSEuOtEYt0opD9-ftymvVGhe5WP83WXIqKkyj7-nkg_jqwYKTXluIDGvrQAdZD_a_M7_mDIFy</recordid><startdate>20070301</startdate><enddate>20070301</enddate><creator>Jogo, A.</creator><creator>Nagasaka, K.</creator><creator>Ibusuki, T.</creator><creator>Oshima, H.</creator><creator>Shimizu, Y.</creator><creator>Uzumaki, T.</creator><creator>Tanaka, A.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20070301</creationdate><title>A strong enhancement of CPP-GMR by using large resistivity magnetic materials</title><author>Jogo, A. ; Nagasaka, K. ; Ibusuki, T. ; Oshima, H. ; Shimizu, Y. ; Uzumaki, T. ; Tanaka, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-d72e860bf55907543875e164f74912d7a70a1ef335fe16b03855d4a6d6c30fe03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Current-perpendicular-to-plane</topic><topic>Exact sciences and technology</topic><topic>Giant magnetoresistance</topic><topic>Heusler alloy</topic><topic>Magnetic properties and materials</topic><topic>Magnetotransport phenomena, materials for magnetotransport</topic><topic>Physics</topic><topic>Read head</topic><topic>Spin valve</topic><topic>Studies of specific magnetic materials</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jogo, A.</creatorcontrib><creatorcontrib>Nagasaka, K.</creatorcontrib><creatorcontrib>Ibusuki, T.</creatorcontrib><creatorcontrib>Oshima, H.</creatorcontrib><creatorcontrib>Shimizu, Y.</creatorcontrib><creatorcontrib>Uzumaki, T.</creatorcontrib><creatorcontrib>Tanaka, A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jogo, A.</au><au>Nagasaka, K.</au><au>Ibusuki, T.</au><au>Oshima, H.</au><au>Shimizu, Y.</au><au>Uzumaki, T.</au><au>Tanaka, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A strong enhancement of CPP-GMR by using large resistivity magnetic materials</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2007-03-01</date><risdate>2007</risdate><volume>310</volume><issue>2</issue><spage>1895</spage><epage>1896</epage><pages>1895-1896</pages><issn>0304-8853</issn><coden>JMMMDC</coden><abstract>We found a ferromagnetic material Co–Mn–Al that shows large specific magnetoresistance change (Δ
RA) in the fully metallic current-perpendicular-to-plane (CPP) spin valve system when used for pinned and free layers. The Co–Mn–Al films were sputter-deposited at room temperature and have disorderd crystral structure. Analyzing the experimental results with the semiclassical two-current theory, we concluded that the enhancement in Δ
RA is ascribed to compatibility of high resistivity and a large spin-asymmetry coefficient for the spin-dependent bulk scattering of the alloy. The results were compared with those for the conventional Co–Fe alloy and for a Co–Fe–Al alloy that also shows large Δ
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| ispartof | Journal of magnetism and magnetic materials, 2007-03, Vol.310 (2), p.1895-1896 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Current-perpendicular-to-plane Exact sciences and technology Giant magnetoresistance Heusler alloy Magnetic properties and materials Magnetotransport phenomena, materials for magnetotransport Physics Read head Spin valve Studies of specific magnetic materials |
| title | A strong enhancement of CPP-GMR by using large resistivity magnetic materials |
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