Observation of mode splitting in artificial spin ice: A comparative ferromagnetic resonance and Brillouin light scattering study
We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques—broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy—we systematically study the...
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| Veröffentlicht in: | Applied physics letters 2021-04, Vol.118 (16) |
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| container_title | Applied physics letters |
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| creator | Lendinez, Sergi Kaffash, Mojtaba Taghipour Jungfleisch, M. Benjamin |
| description | We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques—broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy—we systematically study the evolution of the lattice dynamics, for both a coherent radio frequency excitation and an incoherent thermal excitation of spin dynamics. We observe a splitting of modes facilitated by inter-element interactions that can be controlled by the external field angle and magnitude. Detailed time-dependent micromagnetic simulations reveal that the split modes are localized in different regions of the square network. Furthermore, this observation suggests that it is possible to disentangle modes with different spatial profiles by tuning the external field configuration. |
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Benjamin</creator><creatorcontrib>Lendinez, Sergi ; Kaffash, Mojtaba Taghipour ; Jungfleisch, M. Benjamin ; Univ. of Delaware, Newark, DE (United States)</creatorcontrib><description>We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques—broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy—we systematically study the evolution of the lattice dynamics, for both a coherent radio frequency excitation and an incoherent thermal excitation of spin dynamics. We observe a splitting of modes facilitated by inter-element interactions that can be controlled by the external field angle and magnitude. Detailed time-dependent micromagnetic simulations reveal that the split modes are localized in different regions of the square network. 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Benjamin</creatorcontrib><creatorcontrib>Univ. of Delaware, Newark, DE (United States)</creatorcontrib><title>Observation of mode splitting in artificial spin ice: A comparative ferromagnetic resonance and Brillouin light scattering study</title><title>Applied physics letters</title><description>We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques—broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy—we systematically study the evolution of the lattice dynamics, for both a coherent radio frequency excitation and an incoherent thermal excitation of spin dynamics. We observe a splitting of modes facilitated by inter-element interactions that can be controlled by the external field angle and magnitude. Detailed time-dependent micromagnetic simulations reveal that the split modes are localized in different regions of the square network. Furthermore, this observation suggests that it is possible to disentangle modes with different spatial profiles by tuning the external field configuration.</description><subject>Brillouin spectroscopy</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>Ferromagnetic resonance</subject><subject>Fourier analysis</subject><subject>Light scattering</subject><subject>Magnetism</subject><subject>Magnetization dynamics</subject><subject>Magnons</subject><subject>Nanomagnetism</subject><subject>Spin wave spectroscopy</subject><issn>0003-6951</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqNjLFOA0EMRLcAKQHyDxZ9pA2nQEIHCERHQx8Zn-9itGdHaycSHZ_OIvEBVKM3mjdnaZ5z7pa32_Vqli7cPxuub7punr7fPpzrCUNMwQaYrGfwQ5EI0RFEAWvIICRYWt9YiO_hAcimA9bmnRgGrtUmHJVDCCq7KSoxoPbwWKUUOzaxyLgPcMIIrr_nHsf-6yqdD1icF395ma5fnt-fXpfmITsnCaY9mSpT7FabvM2bu-5fox9zSFEY</recordid><startdate>20210419</startdate><enddate>20210419</enddate><creator>Lendinez, Sergi</creator><creator>Kaffash, Mojtaba Taghipour</creator><creator>Jungfleisch, M. 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Benjamin</creatorcontrib><creatorcontrib>Univ. of Delaware, Newark, DE (United States)</creatorcontrib><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lendinez, Sergi</au><au>Kaffash, Mojtaba Taghipour</au><au>Jungfleisch, M. Benjamin</au><aucorp>Univ. of Delaware, Newark, DE (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of mode splitting in artificial spin ice: A comparative ferromagnetic resonance and Brillouin light scattering study</atitle><jtitle>Applied physics letters</jtitle><date>2021-04-19</date><risdate>2021</risdate><volume>118</volume><issue>16</issue><issn>0003-6951</issn><abstract>We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques—broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy—we systematically study the evolution of the lattice dynamics, for both a coherent radio frequency excitation and an incoherent thermal excitation of spin dynamics. We observe a splitting of modes facilitated by inter-element interactions that can be controlled by the external field angle and magnitude. Detailed time-dependent micromagnetic simulations reveal that the split modes are localized in different regions of the square network. Furthermore, this observation suggests that it is possible to disentangle modes with different spatial profiles by tuning the external field configuration.</abstract><cop>United States</cop><pub>American Institute of Physics (AIP)</pub><orcidid>https://orcid.org/0000000182043677</orcidid><orcidid>https://orcid.org/0000000273601857</orcidid><orcidid>https://orcid.org/0000000286020349</orcidid><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2021-04, Vol.118 (16) |
| issn | 0003-6951 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1809087 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Brillouin spectroscopy CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Ferromagnetic resonance Fourier analysis Light scattering Magnetism Magnetization dynamics Magnons Nanomagnetism Spin wave spectroscopy |
| title | Observation of mode splitting in artificial spin ice: A comparative ferromagnetic resonance and Brillouin light scattering study |
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