Interfacial Dzyaloshinskii-Moriya interaction, surface anisotropy energy, and spin pumping at spin orbit coupled Ir/Co interface
The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same...
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Veröffentlicht in: | Applied physics letters 2016-04, Vol.108 (14) |
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creator | Kim, Nam-Hui Jung, Jinyong Cho, Jaehun Han, Dong-Soo Yin, Yuxiang Kim, June-Seo Swagten, Henk J. M. You, Chun-Yeol |
description | The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same as in the case of the Pt/Co interface. We also find that the magnitude of the iDMI energy density is relatively smaller than in the case of the Pt/Co interface, despite the large strong spin-orbit coupling (SOC) of Ir. The saturation magnetization and the perpendicular magnetic anisotropy (PMA) energy are significantly improved due to a strong SOC. Our findings suggest that an SOC in an Ir/Co system behaves in different ways for iDMI and PMA. Finally, we determine the spin pumping effect at the Ir/Co interface, and it increases the Gilbert damping constant from 0.012 to 0.024 for 1.5 nm-thick Co. |
doi_str_mv | 10.1063/1.4945685 |
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M. ; You, Chun-Yeol</creator><creatorcontrib>Kim, Nam-Hui ; Jung, Jinyong ; Cho, Jaehun ; Han, Dong-Soo ; Yin, Yuxiang ; Kim, June-Seo ; Swagten, Henk J. M. ; You, Chun-Yeol</creatorcontrib><description>The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same as in the case of the Pt/Co interface. We also find that the magnitude of the iDMI energy density is relatively smaller than in the case of the Pt/Co interface, despite the large strong spin-orbit coupling (SOC) of Ir. The saturation magnetization and the perpendicular magnetic anisotropy (PMA) energy are significantly improved due to a strong SOC. Our findings suggest that an SOC in an Ir/Co system behaves in different ways for iDMI and PMA. Finally, we determine the spin pumping effect at the Ir/Co interface, and it increases the Gilbert damping constant from 0.012 to 0.024 for 1.5 nm-thick Co.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4945685</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>ANISOTROPY ; Applied physics ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; Cobalt ; DAMPING ; ENERGY DENSITY ; Flux density ; INTERACTIONS ; INTERFACES ; L-S COUPLING ; LIGHT SCATTERING ; Magnetic anisotropy ; Magnetic saturation ; MAGNETIZATION ; PUMPING ; SATURATION ; SPIN ; Spin-orbit interactions ; SURFACES ; VISIBLE RADIATION</subject><ispartof>Applied physics letters, 2016-04, Vol.108 (14)</ispartof><rights>AIP Publishing LLC</rights><rights>2016 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c456t-d904e87fc7efaf17b760ea51337b0ea4a618e41a62e87357709511dc477a661d3</citedby><cites>FETCH-LOGICAL-c456t-d904e87fc7efaf17b760ea51337b0ea4a618e41a62e87357709511dc477a661d3</cites><orcidid>0000-0002-6080-3484 ; 0000-0001-9549-8611</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/1.4945685$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,780,784,794,885,4512,27924,27925,76384</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22591535$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Kim, Nam-Hui</creatorcontrib><creatorcontrib>Jung, Jinyong</creatorcontrib><creatorcontrib>Cho, Jaehun</creatorcontrib><creatorcontrib>Han, Dong-Soo</creatorcontrib><creatorcontrib>Yin, Yuxiang</creatorcontrib><creatorcontrib>Kim, June-Seo</creatorcontrib><creatorcontrib>Swagten, Henk J. M.</creatorcontrib><creatorcontrib>You, Chun-Yeol</creatorcontrib><title>Interfacial Dzyaloshinskii-Moriya interaction, surface anisotropy energy, and spin pumping at spin orbit coupled Ir/Co interface</title><title>Applied physics letters</title><description>The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same as in the case of the Pt/Co interface. We also find that the magnitude of the iDMI energy density is relatively smaller than in the case of the Pt/Co interface, despite the large strong spin-orbit coupling (SOC) of Ir. The saturation magnetization and the perpendicular magnetic anisotropy (PMA) energy are significantly improved due to a strong SOC. Our findings suggest that an SOC in an Ir/Co system behaves in different ways for iDMI and PMA. Finally, we determine the spin pumping effect at the Ir/Co interface, and it increases the Gilbert damping constant from 0.012 to 0.024 for 1.5 nm-thick Co.</description><subject>ANISOTROPY</subject><subject>Applied physics</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>Cobalt</subject><subject>DAMPING</subject><subject>ENERGY DENSITY</subject><subject>Flux density</subject><subject>INTERACTIONS</subject><subject>INTERFACES</subject><subject>L-S COUPLING</subject><subject>LIGHT SCATTERING</subject><subject>Magnetic anisotropy</subject><subject>Magnetic saturation</subject><subject>MAGNETIZATION</subject><subject>PUMPING</subject><subject>SATURATION</subject><subject>SPIN</subject><subject>Spin-orbit interactions</subject><subject>SURFACES</subject><subject>VISIBLE RADIATION</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp90c9v2yAUB3A0bVKzbIf-B0g9dYpTnjFgH6esPyKl2mU7I4JxS5eCB3iSe-qfXixXzWFST_DQR194PIROgayBcHoB66qpGK_ZB7QAIkRBAeqPaEEIoQVvGJygzzE-5JKVlC7Q89YlEzqlrTrgH0-jOvh4b138Y21x64MdFbaTUDpZ71Y4DhM2WDkbfQq-H7FxJtyNq3zU4thbh_vhMS93WKW59mFvE9Z-6A-mxdtwsfFz6JT0BX3q1CGar6_rEv2-uvy1uSl2P6-3m--7Qud2UtE2pDK16LQwnepA7AUnRjGgVOzzplIcalOB4mVWlAlBcq_Q6koIxTm0dInO5lwfk5VR22T0vfbOGZ1kWbIGGGVH1Qf_dzAxyQc_BJcfJksooSYNpySr81np4GMMppN9sI8qjBKInMYgQb6OIdtvs52uVNMnvuF_Phyh7NvuPfx_8gtmkZbw</recordid><startdate>20160404</startdate><enddate>20160404</enddate><creator>Kim, Nam-Hui</creator><creator>Jung, Jinyong</creator><creator>Cho, Jaehun</creator><creator>Han, Dong-Soo</creator><creator>Yin, Yuxiang</creator><creator>Kim, June-Seo</creator><creator>Swagten, Henk J. M.</creator><creator>You, Chun-Yeol</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-6080-3484</orcidid><orcidid>https://orcid.org/0000-0001-9549-8611</orcidid></search><sort><creationdate>20160404</creationdate><title>Interfacial Dzyaloshinskii-Moriya interaction, surface anisotropy energy, and spin pumping at spin orbit coupled Ir/Co interface</title><author>Kim, Nam-Hui ; Jung, Jinyong ; Cho, Jaehun ; Han, Dong-Soo ; Yin, Yuxiang ; Kim, June-Seo ; Swagten, Henk J. M. ; You, Chun-Yeol</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c456t-d904e87fc7efaf17b760ea51337b0ea4a618e41a62e87357709511dc477a661d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>ANISOTROPY</topic><topic>Applied physics</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>Cobalt</topic><topic>DAMPING</topic><topic>ENERGY DENSITY</topic><topic>Flux density</topic><topic>INTERACTIONS</topic><topic>INTERFACES</topic><topic>L-S COUPLING</topic><topic>LIGHT SCATTERING</topic><topic>Magnetic anisotropy</topic><topic>Magnetic saturation</topic><topic>MAGNETIZATION</topic><topic>PUMPING</topic><topic>SATURATION</topic><topic>SPIN</topic><topic>Spin-orbit interactions</topic><topic>SURFACES</topic><topic>VISIBLE RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Nam-Hui</creatorcontrib><creatorcontrib>Jung, Jinyong</creatorcontrib><creatorcontrib>Cho, Jaehun</creatorcontrib><creatorcontrib>Han, Dong-Soo</creatorcontrib><creatorcontrib>Yin, Yuxiang</creatorcontrib><creatorcontrib>Kim, June-Seo</creatorcontrib><creatorcontrib>Swagten, Henk J. 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M.</au><au>You, Chun-Yeol</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interfacial Dzyaloshinskii-Moriya interaction, surface anisotropy energy, and spin pumping at spin orbit coupled Ir/Co interface</atitle><jtitle>Applied physics letters</jtitle><date>2016-04-04</date><risdate>2016</risdate><volume>108</volume><issue>14</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same as in the case of the Pt/Co interface. We also find that the magnitude of the iDMI energy density is relatively smaller than in the case of the Pt/Co interface, despite the large strong spin-orbit coupling (SOC) of Ir. The saturation magnetization and the perpendicular magnetic anisotropy (PMA) energy are significantly improved due to a strong SOC. Our findings suggest that an SOC in an Ir/Co system behaves in different ways for iDMI and PMA. Finally, we determine the spin pumping effect at the Ir/Co interface, and it increases the Gilbert damping constant from 0.012 to 0.024 for 1.5 nm-thick Co.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4945685</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-6080-3484</orcidid><orcidid>https://orcid.org/0000-0001-9549-8611</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | ANISOTROPY Applied physics CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Cobalt DAMPING ENERGY DENSITY Flux density INTERACTIONS INTERFACES L-S COUPLING LIGHT SCATTERING Magnetic anisotropy Magnetic saturation MAGNETIZATION PUMPING SATURATION SPIN Spin-orbit interactions SURFACES VISIBLE RADIATION |
title | Interfacial Dzyaloshinskii-Moriya interaction, surface anisotropy energy, and spin pumping at spin orbit coupled Ir/Co interface |
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