Effects of confinement and electron transport on magnetic switching in single Co nanoparticles
This work reports the first study of current-driven magnetization noise in a single, nanometerscale, ferromagnetic (Co) particle, attached to normal metal leads by high-resistance tunneling junctions. As the tunnel current increases at low temperature, the magnetic switching field decreases, its pro...
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Veröffentlicht in: | Scientific reports 2013-02, Vol.3 (1), p.1200-1200, Article 1200 |
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description | This work reports the first study of current-driven magnetization noise in a single, nanometerscale, ferromagnetic (Co) particle, attached to normal metal leads by high-resistance tunneling junctions. As the tunnel current increases at low temperature, the magnetic switching field decreases, its probability distribution widens, while the temperature of the environment remains nearly constant. These observations demonstrate nonequilibrium magnetization noise. A classical model of the noise is provided, where the spin-orbit interaction plays a central role in driving magnetic tunneling transitions. |
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T. ; Davidović, D.</creator><creatorcontrib>Jiang, W. ; Birk, F. T. ; Davidović, D. ; Georgia Institute of Technology, Atlanta, GA (United States)</creatorcontrib><description>This work reports the first study of current-driven magnetization noise in a single, nanometerscale, ferromagnetic (Co) particle, attached to normal metal leads by high-resistance tunneling junctions. As the tunnel current increases at low temperature, the magnetic switching field decreases, its probability distribution widens, while the temperature of the environment remains nearly constant. These observations demonstrate nonequilibrium magnetization noise. A classical model of the noise is provided, where the spin-orbit interaction plays a central role in driving magnetic tunneling transitions.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep01200</identifier><identifier>PMID: 23383370</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/357/354 ; 639/766/119/1001 ; 639/925/357/1017 ; 639/925/927/1062 ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; Electron transport ; Humanities and Social Sciences ; Low temperature ; MAGNETIC DEVICES ; multidisciplinary ; NANOPARTICLES ; NANOSCIENCE AND NANOTECHNOLOGY ; Noise ; Probability distribution ; QUANTUM DOTS ; Science ; Science & Technology - Other Topics ; SPINTRONICS ; Temperature effects</subject><ispartof>Scientific reports, 2013-02, Vol.3 (1), p.1200-1200, Article 1200</ispartof><rights>The Author(s) 2013</rights><rights>Copyright Nature Publishing Group Feb 2013</rights><rights>Copyright © 2013, Macmillan Publishers Limited. 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T.</creatorcontrib><creatorcontrib>Davidović, D.</creatorcontrib><creatorcontrib>Georgia Institute of Technology, Atlanta, GA (United States)</creatorcontrib><title>Effects of confinement and electron transport on magnetic switching in single Co nanoparticles</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>This work reports the first study of current-driven magnetization noise in a single, nanometerscale, ferromagnetic (Co) particle, attached to normal metal leads by high-resistance tunneling junctions. As the tunnel current increases at low temperature, the magnetic switching field decreases, its probability distribution widens, while the temperature of the environment remains nearly constant. These observations demonstrate nonequilibrium magnetization noise. 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T. ; Davidović, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c465t-5b892baf630474dbf85c1d64210e04b315f5979d4ab4ffdd894b9de20170d53b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>639/301/357/354</topic><topic>639/766/119/1001</topic><topic>639/925/357/1017</topic><topic>639/925/927/1062</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>Electron transport</topic><topic>Humanities and Social Sciences</topic><topic>Low temperature</topic><topic>MAGNETIC DEVICES</topic><topic>multidisciplinary</topic><topic>NANOPARTICLES</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>Noise</topic><topic>Probability distribution</topic><topic>QUANTUM DOTS</topic><topic>Science</topic><topic>Science & Technology - Other Topics</topic><topic>SPINTRONICS</topic><topic>Temperature effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jiang, W.</creatorcontrib><creatorcontrib>Birk, F. 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title | Effects of confinement and electron transport on magnetic switching in single Co nanoparticles |
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