Experimental realization of linearly polarized x-ray detected ferromagnetic resonance
We present the first theoretical and experimental evidence of time-resolved dynamic x-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our findings show a dynamic XMLD in both ferromagnetic Ni...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac465f |
| _version_ | 1797748583155367936 |
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| author | C Klewe S Emori Q Li M Yang B A Gray H-M Jeon B M Howe Y Suzuki Z Q Qiu P Shafer E Arenholz |
| author_facet | C Klewe S Emori Q Li M Yang B A Gray H-M Jeon B M Howe Y Suzuki Z Q Qiu P Shafer E Arenholz |
| author_sort | C Klewe |
| collection | DOAJ |
| description | We present the first theoretical and experimental evidence of time-resolved dynamic x-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our findings show a dynamic XMLD in both ferromagnetic Ni _80 Fe _20 and ferrimagnetic Ni _0.65 Zn _0.35 Al _0.8 Fe _1.2 O _4 for different measurement geometries and linear polarizations. A detailed analysis of the observed signals reveals the importance of separating different harmonic components in the dynamic signal in order to identify the XMLD response without the influence of competing contributions. In particular, RF magnetic resonance elicits a large dynamic XMLD response at the fundamental frequency under experimental geometries with oblique x-ray polarization. The geometric range and experimental sensitivity can be improved by isolating the 2 ω Fourier component of the dynamic response. These results illustrate the potential of dynamic XMLD and represent a milestone accomplishment toward the study of GHz spin dynamics in systems beyond ferromagnetic order. |
| first_indexed | 2024-03-12T16:06:53Z |
| format | Article |
| id | doaj.art-bfa0d1e13c4b49738fec16e80796e2e0 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:06:53Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-bfa0d1e13c4b49738fec16e80796e2e02023-08-09T14:20:20ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124101303010.1088/1367-2630/ac465fExperimental realization of linearly polarized x-ray detected ferromagnetic resonanceC Klewe0https://orcid.org/0000-0002-5816-5647S Emori1Q Li2M Yang3B A Gray4H-M Jeon5B M Howe6Y Suzuki7Z Q Qiu8P Shafer9https://orcid.org/0000-0001-9363-2557E Arenholz10Advanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, CA, United States of AmericaDepartment of Physics, Virginia Tech , Blacksburg, VA, United States of AmericaNational Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei, Anhui, People’s Republic of ChinaInstitute of Physical Science and Information Technology, Anhui University , Hefei, Anhui, People’s Republic of ChinaMaterials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson Air Force Base, OH, United States of AmericaSensors Directorate, Air Force Research Laboratory , Wright-Patterson Air Force Base, OH, United States of AmericaMaterials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson Air Force Base, OH, United States of AmericaGeballe Laboratory for Advanced Materials, Stanford University , Stanford, CA, United States of America; Department of Applied Physics, Stanford University , Stanford, CA, United States of AmericaDepartment of Physics, University of California at Berkeley , Berkeley, CA, United States of AmericaAdvanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, CA, United States of AmericaAdvanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, CA, United States of AmericaWe present the first theoretical and experimental evidence of time-resolved dynamic x-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our findings show a dynamic XMLD in both ferromagnetic Ni _80 Fe _20 and ferrimagnetic Ni _0.65 Zn _0.35 Al _0.8 Fe _1.2 O _4 for different measurement geometries and linear polarizations. A detailed analysis of the observed signals reveals the importance of separating different harmonic components in the dynamic signal in order to identify the XMLD response without the influence of competing contributions. In particular, RF magnetic resonance elicits a large dynamic XMLD response at the fundamental frequency under experimental geometries with oblique x-ray polarization. The geometric range and experimental sensitivity can be improved by isolating the 2 ω Fourier component of the dynamic response. These results illustrate the potential of dynamic XMLD and represent a milestone accomplishment toward the study of GHz spin dynamics in systems beyond ferromagnetic order.https://doi.org/10.1088/1367-2630/ac465fXMCDXMLDXFMRantiferromagneticFMRdynamic XMLD |
| spellingShingle | C Klewe S Emori Q Li M Yang B A Gray H-M Jeon B M Howe Y Suzuki Z Q Qiu P Shafer E Arenholz Experimental realization of linearly polarized x-ray detected ferromagnetic resonance New Journal of Physics XMCD XMLD XFMR antiferromagnetic FMR dynamic XMLD |
| title | Experimental realization of linearly polarized x-ray detected ferromagnetic resonance |
| title_full | Experimental realization of linearly polarized x-ray detected ferromagnetic resonance |
| title_fullStr | Experimental realization of linearly polarized x-ray detected ferromagnetic resonance |
| title_full_unstemmed | Experimental realization of linearly polarized x-ray detected ferromagnetic resonance |
| title_short | Experimental realization of linearly polarized x-ray detected ferromagnetic resonance |
| title_sort | experimental realization of linearly polarized x ray detected ferromagnetic resonance |
| topic | XMCD XMLD XFMR antiferromagnetic FMR dynamic XMLD |
| url | https://doi.org/10.1088/1367-2630/ac465f |
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