The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles
Spin-Hall thermopiles have been previously proposed as a means to enhance the spin Seebeck effect (SSE). However, the use of platinum (Pt) for spin detection drives costs high and proves an impediment for scalability. In this work, a cost-effective spin-Hall thermopile constructed from opposite spin...
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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/je/1140159 |
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| author | Wimutti Kumpor Perawas Kuptapol Chalothon Wongjom Ekkarat Pongophas Yingyot Infahsaeng Wasan Maiaugree Santi Phumying Rungrueang Pattanakul Mati Horprathum Chanunthorn Chananonnawathorn Piyawat Piyasin Supree Pinitsoontorn Harihara Ramamoorthy Ratchanok Somphonsane Wanchai Pijitrojana Sarut Ummartyotin Poramed Wongjom |
| author_facet | Wimutti Kumpor Perawas Kuptapol Chalothon Wongjom Ekkarat Pongophas Yingyot Infahsaeng Wasan Maiaugree Santi Phumying Rungrueang Pattanakul Mati Horprathum Chanunthorn Chananonnawathorn Piyawat Piyasin Supree Pinitsoontorn Harihara Ramamoorthy Ratchanok Somphonsane Wanchai Pijitrojana Sarut Ummartyotin Poramed Wongjom |
| author_sort | Wimutti Kumpor |
| collection | DOAJ |
| description | Spin-Hall thermopiles have been previously proposed as a means to enhance the spin Seebeck effect (SSE). However, the use of platinum (Pt) for spin detection drives costs high and proves an impediment for scalability. In this work, a cost-effective spin-Hall thermopile constructed from opposite spin-Hall angle ferromagnets, cobalt (Co) and iron (Fe), is reported. The devices are fabricated using a standard sputter-coated yttrium iron garnet (YIG) substrate that serves as the spin injector, and thermally evaporated Co and Fe strips that enable spin detection. When serially connected to form a (YIG/Co, Fe) thermopile structure, measurements indicate a significant enhancement of the spin voltage that results from the additive spin contributions of the opposite spin-Hall angle ferromagnets and the anomalous Nernst effect (ANE) that they exhibit. The YIG/Co, Fe thermopile reported here offers a cost-effective alternative to Pt-based thermopiles and the possibility of large-scale implementation to realize future thermoelectric generators. |
| format | Article |
| id | doaj-art-399fa3d6406d4937a565330631360189 |
| institution | Kabale University |
| issn | 2314-4912 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-399fa3d6406d4937a5653306313601892025-01-08T00:00:03ZengWileyJournal of Engineering2314-49122024-01-01202410.1155/je/1140159The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall ThermopilesWimutti Kumpor0Perawas Kuptapol1Chalothon Wongjom2Ekkarat Pongophas3Yingyot Infahsaeng4Wasan Maiaugree5Santi Phumying6Rungrueang Pattanakul7Mati Horprathum8Chanunthorn Chananonnawathorn9Piyawat Piyasin10Supree Pinitsoontorn11Harihara Ramamoorthy12Ratchanok Somphonsane13Wanchai Pijitrojana14Sarut Ummartyotin15Poramed Wongjom16Division of PhysicsDivision of PhysicsDivision of PhysicsDivision of PhysicsDivision of PhysicsDivision of PhysicsDivision of PhysicsSynchrotron Light Research InstituteNational Electronics and Computer Technology CenterNational Electronics and Computer Technology CenterDepartment of PhysicsDepartment of PhysicsDepartment of Electronics EngineeringDepartment of PhysicsElectrical Engineering DepartmentDepartment of Materials and Textile TechnologyDivision of PhysicsSpin-Hall thermopiles have been previously proposed as a means to enhance the spin Seebeck effect (SSE). However, the use of platinum (Pt) for spin detection drives costs high and proves an impediment for scalability. In this work, a cost-effective spin-Hall thermopile constructed from opposite spin-Hall angle ferromagnets, cobalt (Co) and iron (Fe), is reported. The devices are fabricated using a standard sputter-coated yttrium iron garnet (YIG) substrate that serves as the spin injector, and thermally evaporated Co and Fe strips that enable spin detection. When serially connected to form a (YIG/Co, Fe) thermopile structure, measurements indicate a significant enhancement of the spin voltage that results from the additive spin contributions of the opposite spin-Hall angle ferromagnets and the anomalous Nernst effect (ANE) that they exhibit. The YIG/Co, Fe thermopile reported here offers a cost-effective alternative to Pt-based thermopiles and the possibility of large-scale implementation to realize future thermoelectric generators.http://dx.doi.org/10.1155/je/1140159 |
| spellingShingle | Wimutti Kumpor Perawas Kuptapol Chalothon Wongjom Ekkarat Pongophas Yingyot Infahsaeng Wasan Maiaugree Santi Phumying Rungrueang Pattanakul Mati Horprathum Chanunthorn Chananonnawathorn Piyawat Piyasin Supree Pinitsoontorn Harihara Ramamoorthy Ratchanok Somphonsane Wanchai Pijitrojana Sarut Ummartyotin Poramed Wongjom The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles Journal of Engineering |
| title | The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles |
| title_full | The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles |
| title_fullStr | The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles |
| title_full_unstemmed | The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles |
| title_short | The Spin Voltage Enhancement in Si/YIG/Co, Fe Spin Hall Thermopiles |
| title_sort | spin voltage enhancement in si yig co fe spin hall thermopiles |
| url | http://dx.doi.org/10.1155/je/1140159 |
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