RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2020
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| _version_ | 1866909221139775488 |
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| author | Artemchuk, P. Yu. Prokopenko, O. V. Bankowski, E. N. Meitzler, T. J. Tyberkevych, V. S. Slavin, A. N. |
| author_facet | Artemchuk, P. Yu. Prokopenko, O. V. Bankowski, E. N. Meitzler, T. J. Tyberkevych, V. S. Slavin, A. N. |
| contents | We demonstrate theoretically that in a spintronic diode (SD), having a free magnetic layer with perpendicular magnetic anisotropy of the first and second order and no external bias magnetic field, the out-of-plane regime of magnetization precession can be excited by sufficiently large (exceeding a certain threshold) RF signals with the frequencies <~250 MHz. We also show that such a device can operate as a broadband energy harvester capable of converting incident RF power into a DC power with the conversion efficiency of ~5%. The developed analytical theory of the bias-free SD operation can be used for the optimization of high-efficiency RF detectors and energy harvesters based on SDs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2012_15107 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy Artemchuk, P. Yu. Prokopenko, O. V. Bankowski, E. N. Meitzler, T. J. Tyberkevych, V. S. Slavin, A. N. Applied Physics Mesoscale and Nanoscale Physics We demonstrate theoretically that in a spintronic diode (SD), having a free magnetic layer with perpendicular magnetic anisotropy of the first and second order and no external bias magnetic field, the out-of-plane regime of magnetization precession can be excited by sufficiently large (exceeding a certain threshold) RF signals with the frequencies <~250 MHz. We also show that such a device can operate as a broadband energy harvester capable of converting incident RF power into a DC power with the conversion efficiency of ~5%. The developed analytical theory of the bias-free SD operation can be used for the optimization of high-efficiency RF detectors and energy harvesters based on SDs. |
| title | RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy |
| topic | Applied Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2012.15107 |