Circularly polarized magnetic field generated by two microfabricated crossed coplanar waveguides
We generate a circularly polarized (CP) magnetic field using two crossed coplanar waveguides (TCCWs). By using the CP field, we selectively excite a ferromagnetic resonance between positively and negatively magnetized Co/Ni multilayers. The CP field arises from a superposition of Ampere fields gener...
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| Veröffentlicht in: | Applied physics letters 2017-05, Vol.110 (20) |
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| container_title | Applied physics letters |
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| creator | Kan, I. Soeno, Y. Roppongi, T. Nozaki, Y. |
| description | We generate a circularly polarized (CP) magnetic field using two crossed coplanar waveguides (TCCWs). By using the CP field, we selectively excite a ferromagnetic resonance between positively and negatively magnetized Co/Ni multilayers. The CP field arises from a superposition of Ampere fields generated by microwaves orthogonally propagating along the crossed arms of the TCCWs. The polarity of the magnetic field can be tuned continuously from circular to linear by exploiting a phase delay between the orthogonal microwaves. From a local measurement of the magneto-optical Kerr effect, we also find that the ellipticity of the CP field is distributed over the intersection of the TCCWs. These results indicate that TCCWs have great potential as CP-field generators that can be integrated into micron-scale electrical devices. |
| doi_str_mv | 10.1063/1.4983778 |
| format | Article |
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By using the CP field, we selectively excite a ferromagnetic resonance between positively and negatively magnetized Co/Ni multilayers. The CP field arises from a superposition of Ampere fields generated by microwaves orthogonally propagating along the crossed arms of the TCCWs. The polarity of the magnetic field can be tuned continuously from circular to linear by exploiting a phase delay between the orthogonal microwaves. From a local measurement of the magneto-optical Kerr effect, we also find that the ellipticity of the CP field is distributed over the intersection of the TCCWs. These results indicate that TCCWs have great potential as CP-field generators that can be integrated into micron-scale electrical devices.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4983778</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Circular polarization ; Coplanar waveguides ; Ellipticity ; Ferromagnetic resonance ; Ferromagnetism ; Kerr magnetooptical effect ; Magnetic fields ; Microwaves ; Multilayers ; Polarity ; Superposition (mathematics)</subject><ispartof>Applied physics letters, 2017-05, Vol.110 (20)</ispartof><rights>Author(s)</rights><rights>2017 Author(s). 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By using the CP field, we selectively excite a ferromagnetic resonance between positively and negatively magnetized Co/Ni multilayers. The CP field arises from a superposition of Ampere fields generated by microwaves orthogonally propagating along the crossed arms of the TCCWs. The polarity of the magnetic field can be tuned continuously from circular to linear by exploiting a phase delay between the orthogonal microwaves. From a local measurement of the magneto-optical Kerr effect, we also find that the ellipticity of the CP field is distributed over the intersection of the TCCWs. These results indicate that TCCWs have great potential as CP-field generators that can be integrated into micron-scale electrical devices.</description><subject>Applied physics</subject><subject>Circular polarization</subject><subject>Coplanar waveguides</subject><subject>Ellipticity</subject><subject>Ferromagnetic resonance</subject><subject>Ferromagnetism</subject><subject>Kerr magnetooptical effect</subject><subject>Magnetic fields</subject><subject>Microwaves</subject><subject>Multilayers</subject><subject>Polarity</subject><subject>Superposition (mathematics)</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqdkEtLAzEUhYMoWKsL_8GAK4WpuclkMllK8QUFN7qOmTxKynQyJjMt9dc7bQX3rg7n3o_7OAhdA54BLuk9zApRUc6rEzQBzHlOAapTNMEY07wUDM7RRUqr0TJC6QR9zn3UQ6Nis8u6MKr_tiZbq2Vre68z521jsqVtbVT92Kh3Wb8N2drrGJyqo9eH8uhS2mvoGtWqmG3Vxi4Hb2y6RGdONcle_eoUfTw9vs9f8sXb8-v8YZFrKmifM7DMMlNwQY2rFOFACKugNHb8hhnCgBvMy0I7UuDaGmGcBgHM8ZowrSs6RTfHuV0MX4NNvVyFIbbjSkmAFIUQldhTt0fqcHG0TnbRr1XcScByH6AE-RvgyN4d2aR9r3of2v_BmxD_QNkZR38AiRd_4g</recordid><startdate>20170515</startdate><enddate>20170515</enddate><creator>Kan, I.</creator><creator>Soeno, Y.</creator><creator>Roppongi, T.</creator><creator>Nozaki, Y.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20170515</creationdate><title>Circularly polarized magnetic field generated by two microfabricated crossed coplanar waveguides</title><author>Kan, I. ; Soeno, Y. ; Roppongi, T. ; Nozaki, Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-51e5e5d4793df8a271225816de8375d2517d0764cf240bed9dfc1915f7b25cc83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Applied physics</topic><topic>Circular polarization</topic><topic>Coplanar waveguides</topic><topic>Ellipticity</topic><topic>Ferromagnetic resonance</topic><topic>Ferromagnetism</topic><topic>Kerr magnetooptical effect</topic><topic>Magnetic fields</topic><topic>Microwaves</topic><topic>Multilayers</topic><topic>Polarity</topic><topic>Superposition (mathematics)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kan, I.</creatorcontrib><creatorcontrib>Soeno, Y.</creatorcontrib><creatorcontrib>Roppongi, T.</creatorcontrib><creatorcontrib>Nozaki, Y.</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>Kan, I.</au><au>Soeno, Y.</au><au>Roppongi, T.</au><au>Nozaki, Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Circularly polarized magnetic field generated by two microfabricated crossed coplanar waveguides</atitle><jtitle>Applied physics letters</jtitle><date>2017-05-15</date><risdate>2017</risdate><volume>110</volume><issue>20</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>We generate a circularly polarized (CP) magnetic field using two crossed coplanar waveguides (TCCWs). By using the CP field, we selectively excite a ferromagnetic resonance between positively and negatively magnetized Co/Ni multilayers. The CP field arises from a superposition of Ampere fields generated by microwaves orthogonally propagating along the crossed arms of the TCCWs. The polarity of the magnetic field can be tuned continuously from circular to linear by exploiting a phase delay between the orthogonal microwaves. From a local measurement of the magneto-optical Kerr effect, we also find that the ellipticity of the CP field is distributed over the intersection of the TCCWs. These results indicate that TCCWs have great potential as CP-field generators that can be integrated into micron-scale electrical devices.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4983778</doi><tpages>4</tpages></addata></record> |
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| ispartof | Applied physics letters, 2017-05, Vol.110 (20) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Circular polarization Coplanar waveguides Ellipticity Ferromagnetic resonance Ferromagnetism Kerr magnetooptical effect Magnetic fields Microwaves Multilayers Polarity Superposition (mathematics) |
| title | Circularly polarized magnetic field generated by two microfabricated crossed coplanar waveguides |
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