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ファイル | 記述 | サイズ | フォーマット | |
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PhysRevApplied.16.064058.pdf | 4.82 MB | Adobe PDF | 見る/開く |
タイトル: | Probing Thermal Magnon Current Mediated by Coherent Magnon via Nitrogen-Vacancy Centers in Diamond |
著者: | Prananto, Dwi Kainuma, Yuta Hayashi, Kunitaka Mizuochi, Norikazu https://orcid.org/0000-0003-3099-3210 (unconfirmed) Uchida, Ken-ichi An, Toshu |
著者名の別形: | 水落, 憲和 |
キーワード: | Magnetization dynamics Magnons Nitrogen vacancy centers in diamond Quantum sensing Spin Seebeck effect Spin caloritronics Spin waves Optically detected magnetic resonance Condensed Matter, Materials & Applied Physics Quantum Information |
発行日: | Dec-2021 |
出版者: | American Physical Society (APS) |
誌名: | Physical Review Applied |
巻: | 16 |
号: | 6 |
論文番号: | 064058 |
抄録: | Currently, thermally excited magnons are being intensively investigated, owing to their potential in computing devices and thermoelectric conversion technologies. We report the detection of a thermal magnon current propagating in a magnetic insulator yttrium iron garnet under a temperature gradient using a quantum sensor: electron spins associated with nitrogen-vacancy (N-V) centers in diamond. A thermal magnon current is observed as modified Rabi-oscillation frequencies of N-V spins hosted in a beam-shaped bulk diamond that is resonantly coupled with coherent magnon propagating over a long distance. Additionally, using a nanodiamond, alteration in N-V spin-relaxation rates, depending on the applied temperature gradient, are observed under nonresonant N-V excitation conditions. The demonstration of probing a thermal magnon current mediated by coherent magnons via N-V spin states serves as a basis for creating a device platform that hybridizes spin caloritronics and spin qubits. |
著作権等: | © 2021 American Physical Society |
URI: | http://hdl.handle.net/2433/279920 |
DOI(出版社版): | 10.1103/PhysRevApplied.16.064058 |
出現コレクション: | 学術雑誌掲載論文等 |
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