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Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer
Energy harvesting is a concept which makes dissipated heat useful by transferring thermal energy to other excitations. Most of the existing principles are realized in systems which are heated continuously. We present the concept of high-frequency energy harvesting where the dissipated heat in a samp...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7431562/ https://www.ncbi.nlm.nih.gov/pubmed/32807771 http://dx.doi.org/10.1038/s41467-020-17635-1 |
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author | Kobecki, Michal Scherbakov, Alexey V. Linnik, Tetiana L. Kukhtaruk, Serhii M. Gusev, Vitalyi E. Pattnaik, Debi P. Akimov, Ilya A. Rushforth, Andrew W. Akimov, Andrey V. Bayer, Manfred |
author_facet | Kobecki, Michal Scherbakov, Alexey V. Linnik, Tetiana L. Kukhtaruk, Serhii M. Gusev, Vitalyi E. Pattnaik, Debi P. Akimov, Ilya A. Rushforth, Andrew W. Akimov, Andrey V. Bayer, Manfred |
author_sort | Kobecki, Michal |
collection | PubMed |
description | Energy harvesting is a concept which makes dissipated heat useful by transferring thermal energy to other excitations. Most of the existing principles are realized in systems which are heated continuously. We present the concept of high-frequency energy harvesting where the dissipated heat in a sample excites resonant magnons in a thin ferromagnetic metal layer. The sample is excited by femtosecond laser pulses with a repetition rate of 10 GHz, which results in temperature modulation at the same frequency with amplitude ~0.1 K. The alternating temperature excites magnons in the ferromagnetic nanolayer which are detected by measuring the net magnetization precession. When the magnon frequency is brought onto resonance with the optical excitation, a 12-fold increase of the amplitude of precession indicates efficient resonant heat transfer from the lattice to coherent magnons. The demonstrated principle may be used for energy harvesting in various nanodevices operating at GHz and sub-THz frequency ranges. |
format | Online Article Text |
id | pubmed-7431562 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-74315622020-08-28 Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer Kobecki, Michal Scherbakov, Alexey V. Linnik, Tetiana L. Kukhtaruk, Serhii M. Gusev, Vitalyi E. Pattnaik, Debi P. Akimov, Ilya A. Rushforth, Andrew W. Akimov, Andrey V. Bayer, Manfred Nat Commun Article Energy harvesting is a concept which makes dissipated heat useful by transferring thermal energy to other excitations. Most of the existing principles are realized in systems which are heated continuously. We present the concept of high-frequency energy harvesting where the dissipated heat in a sample excites resonant magnons in a thin ferromagnetic metal layer. The sample is excited by femtosecond laser pulses with a repetition rate of 10 GHz, which results in temperature modulation at the same frequency with amplitude ~0.1 K. The alternating temperature excites magnons in the ferromagnetic nanolayer which are detected by measuring the net magnetization precession. When the magnon frequency is brought onto resonance with the optical excitation, a 12-fold increase of the amplitude of precession indicates efficient resonant heat transfer from the lattice to coherent magnons. The demonstrated principle may be used for energy harvesting in various nanodevices operating at GHz and sub-THz frequency ranges. Nature Publishing Group UK 2020-08-17 /pmc/articles/PMC7431562/ /pubmed/32807771 http://dx.doi.org/10.1038/s41467-020-17635-1 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Kobecki, Michal Scherbakov, Alexey V. Linnik, Tetiana L. Kukhtaruk, Serhii M. Gusev, Vitalyi E. Pattnaik, Debi P. Akimov, Ilya A. Rushforth, Andrew W. Akimov, Andrey V. Bayer, Manfred Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title | Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title_full | Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title_fullStr | Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title_full_unstemmed | Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title_short | Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
title_sort | resonant thermal energy transfer to magnons in a ferromagnetic nanolayer |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7431562/ https://www.ncbi.nlm.nih.gov/pubmed/32807771 http://dx.doi.org/10.1038/s41467-020-17635-1 |
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