Magnon-mediated electric current drag and nonlocal spin-Peltier effect in the ac regime
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911383085383680 |
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| author | Franke, Oliver Akrap, Duje Brouwer, Piet W. |
| author_facet | Franke, Oliver Akrap, Duje Brouwer, Piet W. |
| contents | Electron-magnon coupling at the interface between a normal metal and a magnetically ordered insulator modifies the electrical conductivity of the normal metal, an effect known as spin-Hall magnetoresistance. It can also facilitate magnon-mediated electric current drag, the nonlocal electric current response of two normal metal layers separated by a magnetic insulator. Additionally, spin and heat transport are coupled both in the magnetic insulator and across the interfaces to normal metals. In this article, we present a theory of these spintronic and spin-caloritronic effects for time-dependent applied electric fields $E(ω)$, with driving frequencies $ω$ up to the THz regime. Our model describes how the dominant transport mechanism, coherent or incoherent magnons, evolves with the driving frequency $ω$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_13099 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnon-mediated electric current drag and nonlocal spin-Peltier effect in the ac regime Franke, Oliver Akrap, Duje Brouwer, Piet W. Mesoscale and Nanoscale Physics Electron-magnon coupling at the interface between a normal metal and a magnetically ordered insulator modifies the electrical conductivity of the normal metal, an effect known as spin-Hall magnetoresistance. It can also facilitate magnon-mediated electric current drag, the nonlocal electric current response of two normal metal layers separated by a magnetic insulator. Additionally, spin and heat transport are coupled both in the magnetic insulator and across the interfaces to normal metals. In this article, we present a theory of these spintronic and spin-caloritronic effects for time-dependent applied electric fields $E(ω)$, with driving frequencies $ω$ up to the THz regime. Our model describes how the dominant transport mechanism, coherent or incoherent magnons, evolves with the driving frequency $ω$. |
| title | Magnon-mediated electric current drag and nonlocal spin-Peltier effect in the ac regime |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.13099 |