Spin-wave bound modes in a circular array of magnetic inclusions embedded into a metallized ferromagnetic thin-film matrix
A general theory of forward volume magnetostatic spin-wave multiple scattering by a finite two-dimensional ensemble of cylindrical magnetic inclusions in a ferromagnetic film (matrix) metallized from both sides is developed. It is predicted that bound spin-wave modes are excited around these inclusi...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2015-06, Vol.91 (21), Article 214419 |
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| container_title | Physical review. B, Condensed matter and materials physics |
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| creator | Barabanenkov, Yuri Osokin, Sergey Kalyabin, Dmitry Nikitov, Sergey |
| description | A general theory of forward volume magnetostatic spin-wave multiple scattering by a finite two-dimensional ensemble of cylindrical magnetic inclusions in a ferromagnetic film (matrix) metallized from both sides is developed. It is predicted that bound spin-wave modes are excited around these inclusions. The set of self-consistent equations for spin-wave multiple scattering inside the matrix with inclusions is obtained by using an invariant addition theorem for the cylindrical wave functions. This set of equations is solved by an iterative process. We derive simple expressions for eigenmodes (bound modes) in a form of Bloch-like spin waves propagating along the inclusion circular array. The theory is illustrated on practically significant examples: (i) bound-mode excitation by propagating spin waves; (ii) helix components of the spin-wave-scattered field around magnetic inclusions; and (iii) a high-quality spin-wave resonator based on a small number of magnetic inclusions. |
| doi_str_mv | 10.1103/PhysRevB.91.214419 |
| format | Article |
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It is predicted that bound spin-wave modes are excited around these inclusions. The set of self-consistent equations for spin-wave multiple scattering inside the matrix with inclusions is obtained by using an invariant addition theorem for the cylindrical wave functions. This set of equations is solved by an iterative process. We derive simple expressions for eigenmodes (bound modes) in a form of Bloch-like spin waves propagating along the inclusion circular array. The theory is illustrated on practically significant examples: (i) bound-mode excitation by propagating spin waves; (ii) helix components of the spin-wave-scattered field around magnetic inclusions; and (iii) a high-quality spin-wave resonator based on a small number of magnetic inclusions.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PhysRevB.91.214419</identifier><language>eng</language><subject>Arrays ; Circularity ; Condensed matter ; Inclusions ; Mathematical analysis ; Scattering ; Spin waves ; Thin films ; Wave propagation</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</title><description>A general theory of forward volume magnetostatic spin-wave multiple scattering by a finite two-dimensional ensemble of cylindrical magnetic inclusions in a ferromagnetic film (matrix) metallized from both sides is developed. It is predicted that bound spin-wave modes are excited around these inclusions. The set of self-consistent equations for spin-wave multiple scattering inside the matrix with inclusions is obtained by using an invariant addition theorem for the cylindrical wave functions. This set of equations is solved by an iterative process. We derive simple expressions for eigenmodes (bound modes) in a form of Bloch-like spin waves propagating along the inclusion circular array. The theory is illustrated on practically significant examples: (i) bound-mode excitation by propagating spin waves; (ii) helix components of the spin-wave-scattered field around magnetic inclusions; and (iii) a high-quality spin-wave resonator based on a small number of magnetic inclusions.</description><subject>Arrays</subject><subject>Circularity</subject><subject>Condensed matter</subject><subject>Inclusions</subject><subject>Mathematical analysis</subject><subject>Scattering</subject><subject>Spin waves</subject><subject>Thin films</subject><subject>Wave propagation</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNo9kEtPwzAQhCMEEqXwBzj5yCXFazttfISKl1QJxEPiZtnOmholcbGTQvvrCSpw2tXszKz0Zdkp0AkA5ecPy016xPXlRMKEgRAg97IRFAXNGS9e94edyjKnwOAwO0rpnVIQUrBRtn1a-Tb_1GskJvRtRZpQYSK-JZpYH21f60h0jHpDgiONfmux83a427pPPrSJYGOwqrAatC4MqQY7Xdd-OygOYwz_mW45fHK-boaaLvqv4-zA6Trhye8cZy_XV8_z23xxf3M3v1jklpW0yw2UzohZwayj0wqMEKIo5UwWruSuRODcTJkFZiSI0k1FgdSCNgZZBSi14-PsbNe7iuGjx9SpxieLda1bDH1SMCu4kJRBOVjZzmpjSCmiU6voGx03Cqj6Aa3-QCsJageafwNrwHVX</recordid><startdate>20150615</startdate><enddate>20150615</enddate><creator>Barabanenkov, Yuri</creator><creator>Osokin, Sergey</creator><creator>Kalyabin, Dmitry</creator><creator>Nikitov, Sergey</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20150615</creationdate><title>Spin-wave bound modes in a circular array of magnetic inclusions embedded into a metallized ferromagnetic thin-film matrix</title><author>Barabanenkov, Yuri ; Osokin, Sergey ; Kalyabin, Dmitry ; Nikitov, Sergey</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c280t-b18fb4752cf06d1b444589795f83f8e133b62c12b9148f645e0c1abbe2d1e9af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Arrays</topic><topic>Circularity</topic><topic>Condensed matter</topic><topic>Inclusions</topic><topic>Mathematical analysis</topic><topic>Scattering</topic><topic>Spin waves</topic><topic>Thin films</topic><topic>Wave propagation</topic><toplevel>online_resources</toplevel><creatorcontrib>Barabanenkov, Yuri</creatorcontrib><creatorcontrib>Osokin, Sergey</creatorcontrib><creatorcontrib>Kalyabin, Dmitry</creatorcontrib><creatorcontrib>Nikitov, Sergey</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. 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It is predicted that bound spin-wave modes are excited around these inclusions. The set of self-consistent equations for spin-wave multiple scattering inside the matrix with inclusions is obtained by using an invariant addition theorem for the cylindrical wave functions. This set of equations is solved by an iterative process. We derive simple expressions for eigenmodes (bound modes) in a form of Bloch-like spin waves propagating along the inclusion circular array. The theory is illustrated on practically significant examples: (i) bound-mode excitation by propagating spin waves; (ii) helix components of the spin-wave-scattered field around magnetic inclusions; and (iii) a high-quality spin-wave resonator based on a small number of magnetic inclusions.</abstract><doi>10.1103/PhysRevB.91.214419</doi></addata></record> |
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| ispartof | Physical review. B, Condensed matter and materials physics, 2015-06, Vol.91 (21), Article 214419 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Arrays Circularity Condensed matter Inclusions Mathematical analysis Scattering Spin waves Thin films Wave propagation |
| title | Spin-wave bound modes in a circular array of magnetic inclusions embedded into a metallized ferromagnetic thin-film matrix |
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