Spectrum evolution of magnetostatic waves excited through ultrafast laser-induced heating
We study experimentally the influence of the laser-induced temperature gradient on the parameters of propagating magnetostatic surface waves in thin film of the ferromagnetic metallic alloy Galfenol Fe0.81Ga0.19. The material has a pronounced magnetocrystalline anisotropy and exhibits the long-dista...
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| Veröffentlicht in: | Journal of physics. Conference series 2020-12, Vol.1697 (1), p.12193 |
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| creator | Filatov, Ia A Gerevenkov, P I Wang, M Rushforth, A W Kalashnikova, A M Khokhlov, N E |
| description | We study experimentally the influence of the laser-induced temperature gradient on the parameters of propagating magnetostatic surface waves in thin film of the ferromagnetic metallic alloy Galfenol Fe0.81Ga0.19. The material has a pronounced magnetocrystalline anisotropy and exhibits the long-distance propagation of magnetostatic surface waves excited with femtosecond laser pulses. The excitation pulse heats up the sample locally, what leads to the spatial-temporal change of magnetization and anisotropy parameters of the film, and thus excites the magnetostatic surface waves. We show experimentally that the spectrum of the excited waves narrows as they propagate in such a gradient medium. By changing the orientation of external magnetic field with respect to anisotropy axes of the sample, we control whether the low- or high-frequency part of the spin waves spectrum is suppressed. |
| doi_str_mv | 10.1088/1742-6596/1697/1/012193 |
| format | Article |
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The material has a pronounced magnetocrystalline anisotropy and exhibits the long-distance propagation of magnetostatic surface waves excited with femtosecond laser pulses. The excitation pulse heats up the sample locally, what leads to the spatial-temporal change of magnetization and anisotropy parameters of the film, and thus excites the magnetostatic surface waves. We show experimentally that the spectrum of the excited waves narrows as they propagate in such a gradient medium. By changing the orientation of external magnetic field with respect to anisotropy axes of the sample, we control whether the low- or high-frequency part of the spin waves spectrum is suppressed.</description><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/1697/1/012193</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Anisotropy ; Excitation spectra ; Femtosecond pulses ; Ferromagnetic materials ; Galfenol ; Gallium base alloys ; Laser beam heating ; Lasers ; Magnons ; Parameters ; Physics ; Surface waves ; Thin films ; Ultrafast lasers ; Wave propagation</subject><ispartof>Journal of physics. Conference series, 2020-12, Vol.1697 (1), p.12193</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). 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Conference series</title><addtitle>J. Phys.: Conf. Ser</addtitle><description>We study experimentally the influence of the laser-induced temperature gradient on the parameters of propagating magnetostatic surface waves in thin film of the ferromagnetic metallic alloy Galfenol Fe0.81Ga0.19. The material has a pronounced magnetocrystalline anisotropy and exhibits the long-distance propagation of magnetostatic surface waves excited with femtosecond laser pulses. The excitation pulse heats up the sample locally, what leads to the spatial-temporal change of magnetization and anisotropy parameters of the film, and thus excites the magnetostatic surface waves. We show experimentally that the spectrum of the excited waves narrows as they propagate in such a gradient medium. By changing the orientation of external magnetic field with respect to anisotropy axes of the sample, we control whether the low- or high-frequency part of the spin waves spectrum is suppressed.</description><subject>Anisotropy</subject><subject>Excitation spectra</subject><subject>Femtosecond pulses</subject><subject>Ferromagnetic materials</subject><subject>Galfenol</subject><subject>Gallium base alloys</subject><subject>Laser beam heating</subject><subject>Lasers</subject><subject>Magnons</subject><subject>Parameters</subject><subject>Physics</subject><subject>Surface waves</subject><subject>Thin films</subject><subject>Ultrafast lasers</subject><subject>Wave propagation</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>BENPR</sourceid><recordid>eNqFkE1LxDAQhoMouK7-BgPehNp8NekeZfGTBYXVg6eQpOlul25Tk3TVf29LRREE5zID87wz8ABwitEFRnmeYsFIwrMZTzGfiRSnCBM8o3tg8r3Z_57z_BAchbBBiPYlJuBl2VoTfbeFdufqLlauga6EW7VqbHQhqlgZ-KZ2NkD7bqpoCxjX3nWrNezq6FWpQoS1CtYnVVN0pt-vbR9qVsfgoFR1sCdffQqer6-e5rfJ4uHmbn65SAwlOU2o5kWpCbeUaVMYhg3WWlFtC8VmWghkGUU4R0QwmgkqUMEFYUowzLXOC0an4Gy823r32tkQ5cZ1vulfSsIJyyhiJOspMVLGuxC8LWXrq63yHxIjOXiUgyE52JKDR4nl6LFPno_JyrU_p-8f58vfoGyLsofpH_B_Lz4B8ZiDjQ</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Filatov, Ia A</creator><creator>Gerevenkov, P I</creator><creator>Wang, M</creator><creator>Rushforth, A W</creator><creator>Kalashnikova, A M</creator><creator>Khokhlov, N E</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20201201</creationdate><title>Spectrum evolution of magnetostatic waves excited through ultrafast laser-induced heating</title><author>Filatov, Ia A ; Gerevenkov, P I ; Wang, M ; Rushforth, A W ; Kalashnikova, A M ; Khokhlov, N E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3283-3b6dfb26e34bcdc41c1bba3beda49b770e430180274357370d6724a7416bb8d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anisotropy</topic><topic>Excitation spectra</topic><topic>Femtosecond pulses</topic><topic>Ferromagnetic materials</topic><topic>Galfenol</topic><topic>Gallium base alloys</topic><topic>Laser beam heating</topic><topic>Lasers</topic><topic>Magnons</topic><topic>Parameters</topic><topic>Physics</topic><topic>Surface waves</topic><topic>Thin films</topic><topic>Ultrafast lasers</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Filatov, Ia A</creatorcontrib><creatorcontrib>Gerevenkov, P I</creatorcontrib><creatorcontrib>Wang, M</creatorcontrib><creatorcontrib>Rushforth, A W</creatorcontrib><creatorcontrib>Kalashnikova, A M</creatorcontrib><creatorcontrib>Khokhlov, N E</creatorcontrib><collection>IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of physics. 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The material has a pronounced magnetocrystalline anisotropy and exhibits the long-distance propagation of magnetostatic surface waves excited with femtosecond laser pulses. The excitation pulse heats up the sample locally, what leads to the spatial-temporal change of magnetization and anisotropy parameters of the film, and thus excites the magnetostatic surface waves. We show experimentally that the spectrum of the excited waves narrows as they propagate in such a gradient medium. By changing the orientation of external magnetic field with respect to anisotropy axes of the sample, we control whether the low- or high-frequency part of the spin waves spectrum is suppressed.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/1697/1/012193</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Anisotropy Excitation spectra Femtosecond pulses Ferromagnetic materials Galfenol Gallium base alloys Laser beam heating Lasers Magnons Parameters Physics Surface waves Thin films Ultrafast lasers Wave propagation |
| title | Spectrum evolution of magnetostatic waves excited through ultrafast laser-induced heating |
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