Interface-induced perpendicular magnetic anisotropy of Co nanoparticles on single-layer h-BN/Pt(111)
Ferromagnetism with perpendicular magnetic anisotropy (PMA) was observed at room temperature in cobalt nanoparticles (NPs) grown on hexagonal boron nitride (h-BN) on a Pt(111) surface. It was shown that the Co NPs have planar hexagonal shapes with a mean diameter of ∼20 nm and a mean height of ∼1.6 ...
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| Veröffentlicht in: | Applied physics letters 2018-01, Vol.112 (2) |
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| container_title | Applied physics letters |
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| creator | Watanabe, Takahiro Yamada, Yoichi Koide, Akihiro Entani, Shiro Li, Songtian Popov, Zakhar I. Sorokin, Pavel B. Naramoto, Hiroshi Sasaki, Masahiro Amemiya, Kenta Sakai, Seiji |
| description | Ferromagnetism with perpendicular magnetic anisotropy (PMA) was observed at room temperature in cobalt nanoparticles (NPs) grown on hexagonal boron nitride (h-BN) on a Pt(111) surface. It was shown that the Co NPs have planar hexagonal shapes with a mean diameter of ∼20 nm and a mean height of ∼1.6 nm. The depth-resolved analysis of X-ray magnetic circular dichroism at the Co L2,3-edges revealed that in the ferromagnetic Co NPs, the ratio of the orbital magnetic moment to the spin magnetic moment in the out-of-plane direction becomes larger at the Co NP/h-BN interface than the ratio in bulk Co. The B and N K-edge near edge X-ray absorption fine structures showed the orbital hybridization between the π orbitals of h-BN and d orbitals of Co at the interface, as an origin of the orbital magnetic moment enhancement possibly giving rise to PMA in the Co NPs. |
| doi_str_mv | 10.1063/1.5010836 |
| format | Article |
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It was shown that the Co NPs have planar hexagonal shapes with a mean diameter of ∼20 nm and a mean height of ∼1.6 nm. The depth-resolved analysis of X-ray magnetic circular dichroism at the Co L2,3-edges revealed that in the ferromagnetic Co NPs, the ratio of the orbital magnetic moment to the spin magnetic moment in the out-of-plane direction becomes larger at the Co NP/h-BN interface than the ratio in bulk Co. The B and N K-edge near edge X-ray absorption fine structures showed the orbital hybridization between the π orbitals of h-BN and d orbitals of Co at the interface, as an origin of the orbital magnetic moment enhancement possibly giving rise to PMA in the Co NPs.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.5010836</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Boron nitride ; Dichroism ; Ferromagnetism ; Magnetic anisotropy ; Magnetic fields ; Magnetic moments ; Magnetism ; Nanoparticles ; Orbitals</subject><ispartof>Applied physics letters, 2018-01, Vol.112 (2)</ispartof><rights>Author(s)</rights><rights>2018 Author(s). Published by AIP Publishing.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c472t-a8cef5c7ddbf763f918c950f9d9200675af8e0452cd7bd9eb9d171e280ea7cf33</citedby><cites>FETCH-LOGICAL-c472t-a8cef5c7ddbf763f918c950f9d9200675af8e0452cd7bd9eb9d171e280ea7cf33</cites><orcidid>0000-0003-4882-401X</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/10.1063/1.5010836$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,784,794,4512,27924,27925,76384</link.rule.ids></links><search><creatorcontrib>Watanabe, Takahiro</creatorcontrib><creatorcontrib>Yamada, Yoichi</creatorcontrib><creatorcontrib>Koide, Akihiro</creatorcontrib><creatorcontrib>Entani, Shiro</creatorcontrib><creatorcontrib>Li, Songtian</creatorcontrib><creatorcontrib>Popov, Zakhar I.</creatorcontrib><creatorcontrib>Sorokin, Pavel B.</creatorcontrib><creatorcontrib>Naramoto, Hiroshi</creatorcontrib><creatorcontrib>Sasaki, Masahiro</creatorcontrib><creatorcontrib>Amemiya, Kenta</creatorcontrib><creatorcontrib>Sakai, Seiji</creatorcontrib><title>Interface-induced perpendicular magnetic anisotropy of Co nanoparticles on single-layer h-BN/Pt(111)</title><title>Applied physics letters</title><description>Ferromagnetism with perpendicular magnetic anisotropy (PMA) was observed at room temperature in cobalt nanoparticles (NPs) grown on hexagonal boron nitride (h-BN) on a Pt(111) surface. It was shown that the Co NPs have planar hexagonal shapes with a mean diameter of ∼20 nm and a mean height of ∼1.6 nm. The depth-resolved analysis of X-ray magnetic circular dichroism at the Co L2,3-edges revealed that in the ferromagnetic Co NPs, the ratio of the orbital magnetic moment to the spin magnetic moment in the out-of-plane direction becomes larger at the Co NP/h-BN interface than the ratio in bulk Co. The B and N K-edge near edge X-ray absorption fine structures showed the orbital hybridization between the π orbitals of h-BN and d orbitals of Co at the interface, as an origin of the orbital magnetic moment enhancement possibly giving rise to PMA in the Co NPs.</description><subject>Applied physics</subject><subject>Boron nitride</subject><subject>Dichroism</subject><subject>Ferromagnetism</subject><subject>Magnetic anisotropy</subject><subject>Magnetic fields</subject><subject>Magnetic moments</subject><subject>Magnetism</subject><subject>Nanoparticles</subject><subject>Orbitals</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqd0E1LAzEQBuAgCtbqwX8Q8KLCtplNs9k9avGjUNSDnkOaTOqWbbImu0L_vSstePc0DPPwDryEXAKbACv4FCaCASt5cURGwKTMOEB5TEaMMZ4VlYBTcpbSZlhFzvmI2IXvMDptMKu97Q1a2mJs0dva9I2OdKvXHrvaUO3rFLoY2h0Njs4D9dqHVsfh1mCiwdNU-3WDWaN3GOlndv8yfeuuAeDmnJw43SS8OMwx-Xh8eJ8_Z8vXp8X8bpmZmcy7TJcGnTDS2pWTBXcVlKYSzFW2yhkrpNCuRDYTubFyZStcVRYkYF4y1NI4zsfkap_bxvDVY-rUJvTRDy9VDiBKVg3FDOpmr0wMKUV0qo31VsedAqZ-S1SgDiUO9nZvk6k73dXB_w9_h_gHVWsd_wGAiIAi</recordid><startdate>20180108</startdate><enddate>20180108</enddate><creator>Watanabe, Takahiro</creator><creator>Yamada, Yoichi</creator><creator>Koide, Akihiro</creator><creator>Entani, Shiro</creator><creator>Li, Songtian</creator><creator>Popov, Zakhar I.</creator><creator>Sorokin, Pavel B.</creator><creator>Naramoto, Hiroshi</creator><creator>Sasaki, Masahiro</creator><creator>Amemiya, Kenta</creator><creator>Sakai, Seiji</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/0000-0003-4882-401X</orcidid></search><sort><creationdate>20180108</creationdate><title>Interface-induced perpendicular magnetic anisotropy of Co nanoparticles on single-layer h-BN/Pt(111)</title><author>Watanabe, Takahiro ; Yamada, Yoichi ; Koide, Akihiro ; Entani, Shiro ; Li, Songtian ; Popov, Zakhar I. ; Sorokin, Pavel B. ; Naramoto, Hiroshi ; Sasaki, Masahiro ; Amemiya, Kenta ; Sakai, Seiji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c472t-a8cef5c7ddbf763f918c950f9d9200675af8e0452cd7bd9eb9d171e280ea7cf33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Applied physics</topic><topic>Boron nitride</topic><topic>Dichroism</topic><topic>Ferromagnetism</topic><topic>Magnetic anisotropy</topic><topic>Magnetic fields</topic><topic>Magnetic moments</topic><topic>Magnetism</topic><topic>Nanoparticles</topic><topic>Orbitals</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Watanabe, Takahiro</creatorcontrib><creatorcontrib>Yamada, Yoichi</creatorcontrib><creatorcontrib>Koide, Akihiro</creatorcontrib><creatorcontrib>Entani, Shiro</creatorcontrib><creatorcontrib>Li, Songtian</creatorcontrib><creatorcontrib>Popov, Zakhar I.</creatorcontrib><creatorcontrib>Sorokin, Pavel B.</creatorcontrib><creatorcontrib>Naramoto, Hiroshi</creatorcontrib><creatorcontrib>Sasaki, Masahiro</creatorcontrib><creatorcontrib>Amemiya, Kenta</creatorcontrib><creatorcontrib>Sakai, Seiji</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>Watanabe, Takahiro</au><au>Yamada, Yoichi</au><au>Koide, Akihiro</au><au>Entani, Shiro</au><au>Li, Songtian</au><au>Popov, Zakhar I.</au><au>Sorokin, Pavel B.</au><au>Naramoto, Hiroshi</au><au>Sasaki, Masahiro</au><au>Amemiya, Kenta</au><au>Sakai, Seiji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interface-induced perpendicular magnetic anisotropy of Co nanoparticles on single-layer h-BN/Pt(111)</atitle><jtitle>Applied physics letters</jtitle><date>2018-01-08</date><risdate>2018</risdate><volume>112</volume><issue>2</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>Ferromagnetism with perpendicular magnetic anisotropy (PMA) was observed at room temperature in cobalt nanoparticles (NPs) grown on hexagonal boron nitride (h-BN) on a Pt(111) surface. 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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Boron nitride Dichroism Ferromagnetism Magnetic anisotropy Magnetic fields Magnetic moments Magnetism Nanoparticles Orbitals |
| title | Interface-induced perpendicular magnetic anisotropy of Co nanoparticles on single-layer h-BN/Pt(111) |
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