Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures
© 2020 American Physical Society. Ferromagnetic metals and insulators are widely used for generation, control, and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures integrating both of them are...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/135413 |
| _version_ | 1811095880043855872 |
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| author | Fan, Yabin Quarterman, P Finley, Joseph Han, Jiahao Zhang, Pengxiang Hou, Justin T Stiles, Mark D Grutter, Alexander J Liu, Luqiao |
| author_facet | Fan, Yabin Quarterman, P Finley, Joseph Han, Jiahao Zhang, Pengxiang Hou, Justin T Stiles, Mark D Grutter, Alexander J Liu, Luqiao |
| author_sort | Fan, Yabin |
| collection | MIT |
| description | © 2020 American Physical Society. Ferromagnetic metals and insulators are widely used for generation, control, and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures integrating both of them are less explored. Here, by introducing a Pt/yttrium iron garnet (YIG)/permalloy (Py) hybrid structure grown on a Si substrate, we study the magnetic coupling and magnon transmission across the interface of the two magnetic layers. We find that within this structure, Py and YIG exhibit an antiferromagnetic coupling field as strong as 150 mT, as evidenced by both magnetometry and polarized neutron reflectometry measurements. By controlling individual layer thicknesses and external fields, we realize parallel and antiparallel magnetization configurations, which are further utilized to control the magnon current transmission. We show that a magnon spin valve with an on:off ratio of approximately 130% can be realized out of this multilayer structure at room temperature through both spin pumping and spin-Seebeck-effect experiments. Owing to the efficient control of magnon current and the compatibility with Si technology, the Pt/YIG/Py hybrid structure could potentially find applications in magnon-based logic and memory devices. |
| first_indexed | 2024-09-23T16:32:13Z |
| format | Article |
| id | mit-1721.1/135413 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:32:13Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1354132021-10-28T03:09:49Z Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures Fan, Yabin Quarterman, P Finley, Joseph Han, Jiahao Zhang, Pengxiang Hou, Justin T Stiles, Mark D Grutter, Alexander J Liu, Luqiao © 2020 American Physical Society. Ferromagnetic metals and insulators are widely used for generation, control, and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures integrating both of them are less explored. Here, by introducing a Pt/yttrium iron garnet (YIG)/permalloy (Py) hybrid structure grown on a Si substrate, we study the magnetic coupling and magnon transmission across the interface of the two magnetic layers. We find that within this structure, Py and YIG exhibit an antiferromagnetic coupling field as strong as 150 mT, as evidenced by both magnetometry and polarized neutron reflectometry measurements. By controlling individual layer thicknesses and external fields, we realize parallel and antiparallel magnetization configurations, which are further utilized to control the magnon current transmission. We show that a magnon spin valve with an on:off ratio of approximately 130% can be realized out of this multilayer structure at room temperature through both spin pumping and spin-Seebeck-effect experiments. Owing to the efficient control of magnon current and the compatibility with Si technology, the Pt/YIG/Py hybrid structure could potentially find applications in magnon-based logic and memory devices. 2021-10-27T20:23:22Z 2021-10-27T20:23:22Z 2020 2021-01-28T19:00:03Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135413 en 10.1103/PHYSREVAPPLIED.13.061002 Physical Review Applied Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Fan, Yabin Quarterman, P Finley, Joseph Han, Jiahao Zhang, Pengxiang Hou, Justin T Stiles, Mark D Grutter, Alexander J Liu, Luqiao Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title | Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title_full | Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title_fullStr | Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title_full_unstemmed | Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title_short | Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures |
| title_sort | manipulation of coupling and magnon transport in magnetic metal insulator hybrid structures |
| url | https://hdl.handle.net/1721.1/135413 |
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